First Commit

services/analytics/api/build.gradle.kts

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+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ * Copyright 2023-2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+plugins {
+    id("io.element.android-compose-library")
+}
+
+android {
+    namespace = "io.element.android.services.analytics.api"
+}
+
+dependencies {
+    api(projects.services.analyticsproviders.api)
+    api(projects.services.toolbox.api)
+    implementation(libs.coroutines.core)
+    implementation(projects.libraries.core)
+}

services/analytics/api/src/main/kotlin/io/element/android/services/analytics/api/AnalyticsLongRunningTransaction.kt

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+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.api
+
+sealed class AnalyticsLongRunningTransaction(
+    val name: String,
+    val operation: String?,
+) {
+    data object ColdStartUntilCachedRoomList : AnalyticsLongRunningTransaction("Cold start until cached room list is displayed", null)
+    data object FirstRoomsDisplayed : AnalyticsLongRunningTransaction("First rooms displayed after login or restoration", null)
+    data object ResumeAppUntilNewRoomsReceived : AnalyticsLongRunningTransaction("App was resumed and new room list items arrived", null)
+    data object NotificationTapOpensTimeline : AnalyticsLongRunningTransaction("A notification was tapped and it opened a timeline", null)
+    data object OpenRoom : AnalyticsLongRunningTransaction("Open a room and see loaded items in the timeline", null)
+    data object LoadJoinedRoomFlow : AnalyticsLongRunningTransaction("Load joined room UI", "ui.load")
+    data object LoadMessagesUi : AnalyticsLongRunningTransaction("Load messages UI", "ui.load")
+    data object DisplayFirstTimelineItems : AnalyticsLongRunningTransaction("Get and display first timeline items", null)
+}

services/analytics/api/src/main/kotlin/io/element/android/services/analytics/api/AnalyticsService.kt

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+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ * Copyright 2023-2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.api
+
+import io.element.android.services.analyticsproviders.api.AnalyticsProvider
+import io.element.android.services.analyticsproviders.api.AnalyticsTransaction
+import io.element.android.services.analyticsproviders.api.trackers.AnalyticsTracker
+import io.element.android.services.analyticsproviders.api.trackers.ErrorTracker
+import kotlinx.coroutines.flow.Flow
+
+interface AnalyticsService : AnalyticsTracker, ErrorTracker {
+    /**
+     * Get the available analytics providers.
+     */
+    fun getAvailableAnalyticsProviders(): Set<AnalyticsProvider>
+
+    /**
+     * A Flow of Boolean, true if the user has given their consent.
+     */
+    val userConsentFlow: Flow<Boolean>
+
+    /**
+     * Update the user consent value.
+     */
+    suspend fun setUserConsent(userConsent: Boolean)
+
+    /**
+     * A Flow of Boolean, true if the user has been asked for their consent.
+     */
+    val didAskUserConsentFlow: Flow<Boolean>
+
+    /**
+     * Store the fact that the user has been asked for their consent.
+     */
+    suspend fun setDidAskUserConsent()
+
+    /**
+     * A Flow of String, used for analytics Id.
+     */
+    val analyticsIdFlow: Flow<String>
+
+    /**
+     * Update analyticsId from the AccountData.
+     */
+    suspend fun setAnalyticsId(analyticsId: String)
+
+    /**
+     * Starts a transaction to measure the performance of an operation.
+     */
+    fun startTransaction(name: String, operation: String? = null): AnalyticsTransaction
+
+    /**
+     * Starts an [AnalyticsLongRunningTransaction], that can be shared with other components.
+     */
+    fun startLongRunningTransaction(
+        longRunningTransaction: AnalyticsLongRunningTransaction,
+        parentTransaction: AnalyticsTransaction? = null
+    ): AnalyticsTransaction
+
+    /**
+     * Gets an ongoing [AnalyticsLongRunningTransaction], if it exists.
+     */
+    fun getLongRunningTransaction(longRunningTransaction: AnalyticsLongRunningTransaction): AnalyticsTransaction?
+
+    /**
+     * Removes an ongoing [AnalyticsLongRunningTransaction] so it's no longer shared.
+     */
+    fun removeLongRunningTransaction(longRunningTransaction: AnalyticsLongRunningTransaction): AnalyticsTransaction?
+}
+
+inline fun <T> AnalyticsService.recordTransaction(
+    name: String,
+    operation: String,
+    parentTransaction: AnalyticsTransaction? = null,
+    block: (AnalyticsTransaction) -> T
+): T {
+    val transaction = parentTransaction?.startChild(name, operation)
+        ?: startTransaction(name, operation)
+    try {
+        val result = block(transaction)
+        return result
+    } finally {
+        transaction.finish()
+    }
+}
+
+/**
+ * Cancels a long running transaction. It behaves the same as [AnalyticsService.removeLongRunningTransaction],
+ * but it doesn't return the transaction so we can't finish it later.
+ */
+fun AnalyticsService.cancelLongRunningTransaction(
+    longRunningTransaction: AnalyticsLongRunningTransaction
+) = removeLongRunningTransaction(longRunningTransaction)
+
+/**
+ * Finishes a long running transaction if it exists. Optionally performs an [action] with the transaction before finishing it.
+ */
+fun AnalyticsService.finishLongRunningTransaction(
+    longRunningTransaction: AnalyticsLongRunningTransaction,
+    action: (AnalyticsTransaction) -> Unit = {},
+) {
+    removeLongRunningTransaction(longRunningTransaction)?.let {
+        action(it)
+        it.finish()
+    }
+}

services/analytics/api/src/main/kotlin/io/element/android/services/analytics/api/NoopAnalyticsTransaction.kt

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+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.api
+
+import io.element.android.services.analyticsproviders.api.AnalyticsTransaction
+
+object NoopAnalyticsTransaction : AnalyticsTransaction {
+    override fun startChild(operation: String, description: String?): AnalyticsTransaction = NoopAnalyticsTransaction
+    override fun setData(key: String, value: Any) {}
+    override fun isFinished(): Boolean = true
+    override fun finish() {}
+}

services/analytics/api/src/main/kotlin/io/element/android/services/analytics/api/ScreenTracker.kt

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+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ * Copyright 2024, 2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.api
+
+import androidx.compose.runtime.Composable
+import im.vector.app.features.analytics.plan.MobileScreen
+
+interface ScreenTracker {
+    @Composable
+    fun TrackScreen(
+        screen: MobileScreen.ScreenName,
+    )
+}

services/analytics/api/src/main/kotlin/io/element/android/services/analytics/api/watchers/AnalyticsColdStartWatcher.kt

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+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.api.watchers
+
+/**
+ * Adds a performance check transaction measuring the time between a cold start (or, after we read the user consent after a cold start)
+ * until the cached room list is displayed. This check only takes place in a cold app start after the user is authenticated.
+ */
+interface AnalyticsColdStartWatcher {
+    fun start()
+    fun whenLoggingIn()
+    fun onRoomListVisible()
+}

services/analytics/api/src/main/kotlin/io/element/android/services/analytics/api/watchers/AnalyticsRoomListStateWatcher.kt

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+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.api.watchers
+
+/**
+ * This component is used to check how long it takes for the room list to be up to date after opening the app while it's on a 'warm' state:
+ * the app was previously running and we just returned to it.
+ */
+interface AnalyticsRoomListStateWatcher {
+    fun start()
+    fun stop()
+}

services/analytics/compose/build.gradle.kts

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+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ * Copyright 2023-2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+plugins {
+    id("io.element.android-compose-library")
+}
+
+android {
+    namespace = "io.element.android.services.analytics.compose"
+}
+dependencies {
+    api(projects.services.analytics.api)
+    implementation(projects.services.analytics.noop)
+}

services/analytics/compose/src/main/kotlin/io/element/android/services/analytics/compose/LocalAnalyticsService.kt

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+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ * Copyright 2024, 2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.compose
+
+import androidx.compose.runtime.staticCompositionLocalOf
+import io.element.android.services.analytics.api.AnalyticsService
+import io.element.android.services.analytics.noop.NoopAnalyticsService
+
+/**
+ * Global key to access the [AnalyticsService] in the composition tree.
+ */
+val LocalAnalyticsService = staticCompositionLocalOf<AnalyticsService> {
+    NoopAnalyticsService()
+}

services/analytics/impl/build.gradle.kts

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+import extension.setupDependencyInjection
+import extension.testCommonDependencies
+
+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ * Copyright 2023, 2024 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+plugins {
+    id("io.element.android-compose-library")
+    id("kotlin-parcelize")
+}
+
+android {
+    namespace = "io.element.android.services.analytics.impl"
+}
+
+setupDependencyInjection()
+
+dependencies {
+    implementation(projects.libraries.androidutils)
+    implementation(projects.libraries.core)
+    implementation(projects.libraries.architecture)
+    implementation(projects.libraries.designsystem)
+    implementation(projects.libraries.matrix.api)
+    implementation(projects.libraries.preferences.api)
+    implementation(projects.libraries.sessionStorage.api)
+    implementation(projects.services.appnavstate.api)
+
+    api(projects.services.analyticsproviders.api)
+    api(projects.services.analytics.api)
+    implementation(libs.androidx.datastore.preferences)
+
+    testCommonDependencies(libs)
+    testImplementation(projects.libraries.matrix.test)
+    testImplementation(projects.libraries.sessionStorage.test)
+    testImplementation(projects.services.analytics.test)
+    testImplementation(projects.services.analyticsproviders.test)
+    testImplementation(projects.services.appnavstate.test)
+    testImplementation(projects.services.toolbox.test)
+}

services/analytics/impl/src/main/kotlin/io/element/android/services/analytics/impl/DefaultAnalyticsService.kt

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+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ * Copyright 2023-2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.impl
+
+import dev.zacsweers.metro.AppScope
+import dev.zacsweers.metro.ContributesBinding
+import dev.zacsweers.metro.SingleIn
+import dev.zacsweers.metro.binding
+import im.vector.app.features.analytics.itf.VectorAnalyticsEvent
+import im.vector.app.features.analytics.itf.VectorAnalyticsScreen
+import im.vector.app.features.analytics.plan.SuperProperties
+import im.vector.app.features.analytics.plan.UserProperties
+import io.element.android.libraries.di.annotations.AppCoroutineScope
+import io.element.android.libraries.sessionstorage.api.observer.SessionListener
+import io.element.android.libraries.sessionstorage.api.observer.SessionObserver
+import io.element.android.services.analytics.api.AnalyticsLongRunningTransaction
+import io.element.android.services.analytics.api.AnalyticsService
+import io.element.android.services.analytics.api.NoopAnalyticsTransaction
+import io.element.android.services.analytics.impl.log.analyticsTag
+import io.element.android.services.analytics.impl.store.AnalyticsStore
+import io.element.android.services.analyticsproviders.api.AnalyticsProvider
+import io.element.android.services.analyticsproviders.api.AnalyticsTransaction
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
+import timber.log.Timber
+import java.util.concurrent.ConcurrentHashMap
+import java.util.concurrent.atomic.AtomicBoolean
+
+@SingleIn(AppScope::class)
+@ContributesBinding(AppScope::class, binding = binding<AnalyticsService>())
+class DefaultAnalyticsService(
+    private val analyticsProviders: Set<@JvmSuppressWildcards AnalyticsProvider>,
+    private val analyticsStore: AnalyticsStore,
+//    private val lateInitUserPropertiesFactory: LateInitUserPropertiesFactory,
+    @AppCoroutineScope
+    private val coroutineScope: CoroutineScope,
+    private val sessionObserver: SessionObserver,
+) : AnalyticsService, SessionListener {
+    private val pendingLongRunningTransactions = ConcurrentHashMap<AnalyticsLongRunningTransaction, AnalyticsTransaction>()
+
+    // Cache for the store values
+    private val userConsent = AtomicBoolean(false)
+
+    // Cache for the properties to send
+    private var pendingUserProperties: UserProperties? = null
+
+    override val userConsentFlow: Flow<Boolean> = analyticsStore.userConsentFlow
+    override val didAskUserConsentFlow: Flow<Boolean> = analyticsStore.didAskUserConsentFlow
+    override val analyticsIdFlow: Flow<String> = analyticsStore.analyticsIdFlow
+
+    init {
+        observeUserConsent()
+        observeSessions()
+    }
+
+    override fun getAvailableAnalyticsProviders(): Set<AnalyticsProvider> {
+        return analyticsProviders
+    }
+
+    override suspend fun setUserConsent(userConsent: Boolean) {
+        Timber.tag(analyticsTag.value).d("setUserConsent($userConsent)")
+        analyticsStore.setUserConsent(userConsent)
+    }
+
+    override suspend fun setDidAskUserConsent() {
+        Timber.tag(analyticsTag.value).d("setDidAskUserConsent()")
+        analyticsStore.setDidAskUserConsent()
+    }
+
+    override suspend fun setAnalyticsId(analyticsId: String) {
+        Timber.tag(analyticsTag.value).d("setAnalyticsId($analyticsId)")
+        analyticsStore.setAnalyticsId(analyticsId)
+    }
+
+    override suspend fun onSessionDeleted(userId: String, wasLastSession: Boolean) {
+        // Delete the store when the last session is deleted
+        if (wasLastSession) {
+            analyticsStore.reset()
+        }
+    }
+
+    private fun observeUserConsent() {
+        userConsentFlow
+            .onEach { consent ->
+                Timber.tag(analyticsTag.value).d("User consent updated to $consent")
+                userConsent.set(consent)
+                initOrStop()
+            }
+            .launchIn(coroutineScope)
+    }
+
+    private fun observeSessions() {
+        sessionObserver.addListener(this)
+    }
+
+    private fun initOrStop() {
+        if (userConsent.get()) {
+            analyticsProviders.onEach { it.init() }
+            pendingUserProperties?.let {
+                analyticsProviders.onEach { provider -> provider.updateUserProperties(it) }
+                pendingUserProperties = null
+            }
+        } else {
+            analyticsProviders.onEach { it.stop() }
+        }
+    }
+
+    override fun capture(event: VectorAnalyticsEvent) {
+        Timber.tag(analyticsTag.value).d("capture($event)")
+        if (userConsent.get()) {
+            analyticsProviders.onEach { it.capture(event) }
+        }
+    }
+
+    override fun screen(screen: VectorAnalyticsScreen) {
+        Timber.tag(analyticsTag.value).d("screen($screen)")
+        if (userConsent.get()) {
+            analyticsProviders.onEach { it.screen(screen) }
+        }
+    }
+
+    override fun updateUserProperties(userProperties: UserProperties) {
+        if (userConsent.get()) {
+            analyticsProviders.onEach { it.updateUserProperties(userProperties) }
+        } else {
+            pendingUserProperties = userProperties
+        }
+    }
+
+    override fun updateSuperProperties(updatedProperties: SuperProperties) {
+        this.analyticsProviders.onEach { it.updateSuperProperties(updatedProperties) }
+    }
+
+    override fun trackError(throwable: Throwable) {
+        if (userConsent.get()) {
+            analyticsProviders.onEach { it.trackError(throwable) }
+        }
+    }
+
+    override fun startTransaction(name: String, operation: String?): AnalyticsTransaction {
+        return if (userConsent.get()) {
+            analyticsProviders.firstNotNullOfOrNull { it.startTransaction(name, operation) }
+        } else {
+            null
+        } ?: NoopAnalyticsTransaction
+    }
+
+    override fun startLongRunningTransaction(
+        longRunningTransaction: AnalyticsLongRunningTransaction,
+        parentTransaction: AnalyticsTransaction?,
+    ): AnalyticsTransaction {
+        val transaction = parentTransaction?.startChild(longRunningTransaction.name, longRunningTransaction.operation)
+            ?: startTransaction(longRunningTransaction.name, longRunningTransaction.operation)
+
+        pendingLongRunningTransactions[longRunningTransaction] = transaction
+        return transaction
+    }
+
+    override fun getLongRunningTransaction(longRunningTransaction: AnalyticsLongRunningTransaction): AnalyticsTransaction? {
+        return pendingLongRunningTransactions[longRunningTransaction]
+    }
+
+    override fun removeLongRunningTransaction(longRunningTransaction: AnalyticsLongRunningTransaction): AnalyticsTransaction? {
+        return pendingLongRunningTransactions.remove(longRunningTransaction)
+    }
+}

services/analytics/impl/src/main/kotlin/io/element/android/services/analytics/impl/DefaultScreenTracker.kt

@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ * Copyright 2024, 2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.impl
+
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableLongStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.lifecycle.Lifecycle
+import dev.zacsweers.metro.AppScope
+import dev.zacsweers.metro.ContributesBinding
+import im.vector.app.features.analytics.plan.MobileScreen
+import io.element.android.libraries.designsystem.utils.OnLifecycleEvent
+import io.element.android.services.analytics.api.AnalyticsService
+import io.element.android.services.analytics.api.ScreenTracker
+import io.element.android.services.toolbox.api.systemclock.SystemClock
+
+@ContributesBinding(AppScope::class)
+class DefaultScreenTracker(
+    private val analyticsService: AnalyticsService,
+    private val systemClock: SystemClock,
+) : ScreenTracker {
+    @Composable
+    override fun TrackScreen(
+        screen: MobileScreen.ScreenName,
+    ) {
+        var startTime by remember { mutableLongStateOf(0L) }
+        OnLifecycleEvent { _, event ->
+            when (event) {
+                Lifecycle.Event.ON_RESUME -> {
+                    startTime = systemClock.epochMillis()
+                }
+                Lifecycle.Event.ON_PAUSE -> analyticsService.screen(
+                    screen = MobileScreen(
+                        durationMs = (systemClock.epochMillis() - startTime).toInt(),
+                        screenName = screen
+                    )
+                )
+                else -> Unit
+            }
+        }
+    }
+}

services/analytics/impl/src/main/kotlin/io/element/android/services/analytics/impl/log/AnalyticsLoggerTag.kt

@@ -0,0 +1,13 @@
+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ * Copyright 2021-2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.impl.log
+
+import io.element.android.libraries.core.log.logger.LoggerTag
+
+val analyticsTag = LoggerTag("Analytics")

services/analytics/impl/src/main/kotlin/io/element/android/services/analytics/impl/store/AnalyticsStore.kt

@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ * Copyright 2021-2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.impl.store
+
+import androidx.datastore.preferences.core.booleanPreferencesKey
+import androidx.datastore.preferences.core.edit
+import androidx.datastore.preferences.core.stringPreferencesKey
+import dev.zacsweers.metro.AppScope
+import dev.zacsweers.metro.ContributesBinding
+import io.element.android.libraries.core.bool.orFalse
+import io.element.android.libraries.preferences.api.store.PreferenceDataStoreFactory
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.distinctUntilChanged
+import kotlinx.coroutines.flow.map
+
+/**
+ * Local storage for:
+ * - user consent (Boolean);
+ * - did ask user consent (Boolean);
+ * - analytics Id (String).
+ */
+interface AnalyticsStore {
+    val userConsentFlow: Flow<Boolean>
+    val didAskUserConsentFlow: Flow<Boolean>
+    val analyticsIdFlow: Flow<String>
+    suspend fun setUserConsent(newUserConsent: Boolean)
+    suspend fun setDidAskUserConsent(newValue: Boolean = true)
+    suspend fun setAnalyticsId(newAnalyticsId: String)
+    suspend fun reset()
+}
+
+@ContributesBinding(AppScope::class)
+class DefaultAnalyticsStore(
+    preferenceDataStoreFactory: PreferenceDataStoreFactory,
+) : AnalyticsStore {
+    private val userConsent = booleanPreferencesKey("user_consent")
+    private val didAskUserConsent = booleanPreferencesKey("did_ask_user_consent")
+    private val analyticsId = stringPreferencesKey("analytics_id")
+
+    private val dataStore = preferenceDataStoreFactory.create("vector_analytics")
+
+    override val userConsentFlow: Flow<Boolean> = dataStore.data
+        .map { preferences -> preferences[userConsent].orFalse() }
+        .distinctUntilChanged()
+
+    override val didAskUserConsentFlow: Flow<Boolean> = dataStore.data
+        .map { preferences -> preferences[didAskUserConsent].orFalse() }
+        .distinctUntilChanged()
+
+    override val analyticsIdFlow: Flow<String> = dataStore.data
+        .map { preferences -> preferences[analyticsId].orEmpty() }
+        .distinctUntilChanged()
+
+    override suspend fun setUserConsent(newUserConsent: Boolean) {
+        dataStore.edit { settings ->
+            settings[userConsent] = newUserConsent
+        }
+    }
+
+    override suspend fun setDidAskUserConsent(newValue: Boolean) {
+        dataStore.edit { settings ->
+            settings[didAskUserConsent] = newValue
+        }
+    }
+
+    override suspend fun setAnalyticsId(newAnalyticsId: String) {
+        dataStore.edit { settings ->
+            settings[analyticsId] = newAnalyticsId
+        }
+    }
+
+    override suspend fun reset() {
+        dataStore.edit {
+            it.clear()
+        }
+    }
+}

services/analytics/impl/src/main/kotlin/io/element/android/services/analytics/impl/watchers/DefaultAnalyticsColdStartWatcher.kt

@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.impl.watchers
+
+import dev.zacsweers.metro.AppScope
+import dev.zacsweers.metro.ContributesBinding
+import dev.zacsweers.metro.SingleIn
+import io.element.android.libraries.di.annotations.AppCoroutineScope
+import io.element.android.services.analytics.api.AnalyticsLongRunningTransaction
+import io.element.android.services.analytics.api.AnalyticsService
+import io.element.android.services.analytics.api.cancelLongRunningTransaction
+import io.element.android.services.analytics.api.finishLongRunningTransaction
+import io.element.android.services.analytics.api.watchers.AnalyticsColdStartWatcher
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.flow.catch
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
+import timber.log.Timber
+import java.util.concurrent.atomic.AtomicBoolean
+
+@SingleIn(AppScope::class)
+@ContributesBinding(AppScope::class)
+class DefaultAnalyticsColdStartWatcher(
+    private val analyticsService: AnalyticsService,
+    @AppCoroutineScope private val appCoroutineScope: CoroutineScope,
+) : AnalyticsColdStartWatcher {
+    private val isColdStart = AtomicBoolean(true)
+
+    override fun start() {
+        analyticsService.userConsentFlow
+            .onEach { hasConsent ->
+                if (hasConsent) {
+                    if (isColdStart.get()) {
+                        Timber.d("Starting cold start check")
+                        analyticsService.startLongRunningTransaction(AnalyticsLongRunningTransaction.ColdStartUntilCachedRoomList)
+                    } else {
+                        error("The app is no longer in a cold start state")
+                    }
+                }
+            }
+            .catch { Timber.w(it.message) }
+            .launchIn(appCoroutineScope)
+    }
+
+    override fun whenLoggingIn() {
+        if (isColdStart.getAndSet(false)) {
+            analyticsService.cancelLongRunningTransaction(AnalyticsLongRunningTransaction.ColdStartUntilCachedRoomList)
+            Timber.d("Canceled cold start check: user is logging in")
+        }
+    }
+
+    override fun onRoomListVisible() {
+        if (isColdStart.getAndSet(false)) {
+            Timber.d("Room list is visible, finishing cold start check")
+            analyticsService.finishLongRunningTransaction(AnalyticsLongRunningTransaction.ColdStartUntilCachedRoomList)
+        }
+    }
+}

services/analytics/impl/src/main/kotlin/io/element/android/services/analytics/impl/watchers/DefaultAnalyticsRoomListStateWatcher.kt

@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.impl.watchers
+
+import dev.zacsweers.metro.ContributesBinding
+import io.element.android.libraries.core.coroutine.CoroutineDispatchers
+import io.element.android.libraries.core.coroutine.childScope
+import io.element.android.libraries.core.coroutine.withPreviousValue
+import io.element.android.libraries.di.SessionScope
+import io.element.android.libraries.di.annotations.SessionCoroutineScope
+import io.element.android.libraries.matrix.api.roomlist.RoomListService
+import io.element.android.services.analytics.api.AnalyticsLongRunningTransaction
+import io.element.android.services.analytics.api.AnalyticsService
+import io.element.android.services.analytics.api.finishLongRunningTransaction
+import io.element.android.services.analytics.api.watchers.AnalyticsRoomListStateWatcher
+import io.element.android.services.appnavstate.api.AppNavigationStateService
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.cancelChildren
+import kotlinx.coroutines.flow.distinctUntilChanged
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.onEach
+import timber.log.Timber
+import java.util.concurrent.atomic.AtomicBoolean
+
+@ContributesBinding(SessionScope::class)
+class DefaultAnalyticsRoomListStateWatcher(
+    private val appNavigationStateService: AppNavigationStateService,
+    private val roomListService: RoomListService,
+    private val analyticsService: AnalyticsService,
+    @SessionCoroutineScope sessionCoroutineScope: CoroutineScope,
+    dispatchers: CoroutineDispatchers,
+) : AnalyticsRoomListStateWatcher {
+    private val coroutineScope: CoroutineScope = sessionCoroutineScope.childScope(dispatchers.computation, "AnalyticsRoomListStateWatcher")
+    private val isStarted = AtomicBoolean(false)
+    private val isWarmState = AtomicBoolean(false)
+
+    override fun start() {
+        if (isStarted.getAndSet(true)) {
+            Timber.w("Can't start RoomListStateWatcher, it's already running.")
+            return
+        }
+
+        appNavigationStateService.appNavigationState
+            .map { it.isInForeground }
+            .distinctUntilChanged()
+            .withPreviousValue()
+            .onEach { (wasInForeground, isInForeground) ->
+                if (isInForeground && roomListService.state.value != RoomListService.State.Running) {
+                    analyticsService.startLongRunningTransaction(AnalyticsLongRunningTransaction.ResumeAppUntilNewRoomsReceived)
+                }
+
+                if (wasInForeground == false && isInForeground) {
+                    isWarmState.set(true)
+                }
+            }
+            .launchIn(coroutineScope)
+
+        roomListService.state
+            .onEach { state ->
+                if (state == RoomListService.State.Running && isWarmState.get()) {
+                    analyticsService.finishLongRunningTransaction(AnalyticsLongRunningTransaction.ResumeAppUntilNewRoomsReceived)
+                }
+            }
+            .launchIn(coroutineScope)
+    }
+
+    override fun stop() {
+        if (isStarted.getAndSet(false)) {
+            coroutineScope.coroutineContext.cancelChildren()
+        }
+    }
+}

services/analytics/impl/src/test/kotlin/io/element/android/services/analytics/impl/DefaultAnalyticsServiceTest.kt

@@ -0,0 +1,300 @@
+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ * Copyright 2024, 2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+@file:OptIn(ExperimentalCoroutinesApi::class)
+
+package io.element.android.services.analytics.impl
+
+import com.google.common.truth.Truth.assertThat
+import im.vector.app.features.analytics.itf.VectorAnalyticsEvent
+import im.vector.app.features.analytics.itf.VectorAnalyticsScreen
+import im.vector.app.features.analytics.plan.MobileScreen
+import im.vector.app.features.analytics.plan.PollEnd
+import im.vector.app.features.analytics.plan.SuperProperties
+import im.vector.app.features.analytics.plan.UserProperties
+import io.element.android.libraries.sessionstorage.api.observer.SessionObserver
+import io.element.android.libraries.sessionstorage.test.observer.NoOpSessionObserver
+import io.element.android.services.analytics.impl.store.AnalyticsStore
+import io.element.android.services.analytics.impl.store.FakeAnalyticsStore
+import io.element.android.services.analyticsproviders.api.AnalyticsProvider
+import io.element.android.services.analyticsproviders.test.FakeAnalyticsProvider
+import io.element.android.tests.testutils.lambda.lambdaRecorder
+import io.element.android.tests.testutils.lambda.value
+import kotlinx.coroutines.CompletableDeferred
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.cancel
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.test.runTest
+import org.junit.Test
+
+class DefaultAnalyticsServiceTest {
+    @Test
+    fun `getAvailableAnalyticsProviders return the set of provider`() = runTest {
+        val providers = setOf(
+            FakeAnalyticsProvider(name = "provider1", stopLambda = { }),
+            FakeAnalyticsProvider(name = "provider2", stopLambda = { }),
+        )
+        val sut = createDefaultAnalyticsService(
+            coroutineScope = backgroundScope,
+            analyticsProviders = providers
+        )
+        val result = sut.getAvailableAnalyticsProviders()
+        assertThat(result).isEqualTo(providers)
+    }
+
+    @Test
+    fun `when consent is not provided, capture is no op`() = runTest {
+        val sut = createDefaultAnalyticsService(backgroundScope)
+        sut.capture(anEvent)
+    }
+
+    @Test
+    fun `when consent is provided, capture is sent to the AnalyticsProvider`() = runTest {
+        val initLambda = lambdaRecorder<Unit> { }
+        val captureLambda = lambdaRecorder<VectorAnalyticsEvent, Unit> { _ -> }
+        val sut = createDefaultAnalyticsService(
+            coroutineScope = backgroundScope,
+            analyticsStore = FakeAnalyticsStore(defaultUserConsent = true),
+            analyticsProviders = setOf(
+                FakeAnalyticsProvider(
+                    initLambda = initLambda,
+                    captureLambda = captureLambda,
+                )
+            )
+        )
+        initLambda.assertions().isCalledOnce()
+        sut.capture(anEvent)
+        captureLambda.assertions().isCalledOnce().with(value(anEvent))
+    }
+
+    @Test
+    fun `when consent is not provided, screen is no op`() = runTest {
+        val sut = createDefaultAnalyticsService(backgroundScope)
+        sut.screen(aScreen)
+    }
+
+    @Test
+    fun `when consent is provided, screen is sent to the AnalyticsProvider`() = runTest {
+        val initLambda = lambdaRecorder<Unit> { }
+        val screenLambda = lambdaRecorder<VectorAnalyticsScreen, Unit> { _ -> }
+        val sut = createDefaultAnalyticsService(
+            coroutineScope = backgroundScope,
+            analyticsStore = FakeAnalyticsStore(defaultUserConsent = true),
+            analyticsProviders = setOf(
+                FakeAnalyticsProvider(
+                    initLambda = initLambda,
+                    screenLambda = screenLambda,
+                )
+            )
+        )
+        initLambda.assertions().isCalledOnce()
+        sut.screen(aScreen)
+        screenLambda.assertions().isCalledOnce().with(value(aScreen))
+    }
+
+    @Test
+    fun `when consent is not provided, trackError is no op`() = runTest {
+        val sut = createDefaultAnalyticsService(backgroundScope)
+        sut.trackError(anError)
+    }
+
+    @Test
+    fun `when consent is provided, trackError is sent to the AnalyticsProvider`() = runTest {
+        val initLambda = lambdaRecorder<Unit> { }
+        val trackErrorLambda = lambdaRecorder<Throwable, Unit> { _ -> }
+        val sut = createDefaultAnalyticsService(
+            coroutineScope = backgroundScope,
+            analyticsStore = FakeAnalyticsStore(defaultUserConsent = true),
+            analyticsProviders = setOf(
+                FakeAnalyticsProvider(
+                    initLambda = initLambda,
+                    trackErrorLambda = trackErrorLambda,
+                )
+            )
+        )
+        initLambda.assertions().isCalledOnce()
+        sut.trackError(anError)
+        trackErrorLambda.assertions().isCalledOnce().with(value(anError))
+    }
+
+    @Test
+    fun `setUserConsent is sent to the store`() = runTest {
+        val store = FakeAnalyticsStore()
+        val sut = createDefaultAnalyticsService(
+            coroutineScope = backgroundScope,
+            analyticsStore = store,
+        )
+        assertThat(store.userConsentFlow.first()).isFalse()
+        assertThat(sut.userConsentFlow.first()).isFalse()
+        sut.setUserConsent(true)
+        assertThat(store.userConsentFlow.first()).isTrue()
+        assertThat(sut.userConsentFlow.first()).isTrue()
+    }
+
+    @Test
+    fun `setAnalyticsId is sent to the store`() = runTest {
+        val store = FakeAnalyticsStore()
+        val sut = createDefaultAnalyticsService(
+            coroutineScope = backgroundScope,
+            analyticsStore = store,
+        )
+        assertThat(store.analyticsIdFlow.first()).isEqualTo("")
+        assertThat(sut.analyticsIdFlow.first()).isEqualTo("")
+        sut.setAnalyticsId(AN_ID)
+        assertThat(store.analyticsIdFlow.first()).isEqualTo(AN_ID)
+        assertThat(sut.analyticsIdFlow.first()).isEqualTo(AN_ID)
+    }
+
+    @Test
+    fun `setDidAskUserConsent is sent to the store`() = runTest {
+        val store = FakeAnalyticsStore()
+        val sut = createDefaultAnalyticsService(
+            coroutineScope = backgroundScope,
+            analyticsStore = store,
+        )
+        assertThat(store.didAskUserConsentFlow.first()).isFalse()
+        assertThat(sut.didAskUserConsentFlow.first()).isFalse()
+        sut.setDidAskUserConsent()
+        assertThat(store.didAskUserConsentFlow.first()).isTrue()
+        assertThat(sut.didAskUserConsentFlow.first()).isTrue()
+    }
+
+    @Test
+    fun `when the last session is deleted, the store is reset`() = runTest {
+        val resetLambda = lambdaRecorder<Unit> { }
+        val store = FakeAnalyticsStore(
+            resetLambda = resetLambda,
+        )
+        val sut = createDefaultAnalyticsService(
+            coroutineScope = backgroundScope,
+            analyticsStore = store,
+        )
+        sut.onSessionDeleted("userId", true)
+        resetLambda.assertions().isCalledOnce()
+    }
+
+    @Test
+    fun `when a session is deleted, the store is not reset if it was not the last session`() = runTest {
+        val resetLambda = lambdaRecorder<Unit> { }
+        val store = FakeAnalyticsStore(
+            resetLambda = resetLambda,
+        )
+        val sut = createDefaultAnalyticsService(
+            coroutineScope = backgroundScope,
+            analyticsStore = store,
+        )
+        sut.onSessionDeleted("userId", false)
+        resetLambda.assertions().isNeverCalled()
+    }
+
+    @Test
+    fun `when a session is added, nothing happen`() = runTest {
+        val sut = createDefaultAnalyticsService(
+            coroutineScope = backgroundScope,
+        )
+        sut.onSessionCreated("userId")
+    }
+
+    @Test
+    fun `when consent is not provided, updateUserProperties is stored for future use`() = runTest {
+        val completable = CompletableDeferred<Unit>()
+        val updateUserPropertiesLambda = lambdaRecorder<UserProperties, Unit> { _ ->
+            completable.complete(Unit)
+        }
+        launch {
+            val sut = createDefaultAnalyticsService(
+                coroutineScope = this,
+                analyticsProviders = setOf(
+                    FakeAnalyticsProvider(
+                        initLambda = { },
+                        stopLambda = { },
+                        updateUserPropertiesLambda = updateUserPropertiesLambda,
+                    )
+                )
+            )
+            sut.updateUserProperties(aUserProperty)
+            updateUserPropertiesLambda.assertions().isNeverCalled()
+            // Give user consent
+            sut.setUserConsent(true)
+            completable.await()
+            updateUserPropertiesLambda.assertions().isCalledOnce().with(value(aUserProperty))
+            cancel()
+        }
+    }
+
+    @Test
+    fun `when consent is provided, updateUserProperties is sent to the provider`() = runTest {
+        val updateUserPropertiesLambda = lambdaRecorder<UserProperties, Unit> { _ -> }
+        val sut = createDefaultAnalyticsService(
+            coroutineScope = backgroundScope,
+            analyticsProviders = setOf(
+                FakeAnalyticsProvider(
+                    initLambda = { },
+                    updateUserPropertiesLambda = updateUserPropertiesLambda,
+                )
+            ),
+            analyticsStore = FakeAnalyticsStore(defaultUserConsent = true),
+        )
+        sut.updateUserProperties(aUserProperty)
+        updateUserPropertiesLambda.assertions().isCalledOnce().with(value(aUserProperty))
+    }
+
+    @Test
+    fun `when super properties are updated, updateSuperProperties is sent to the provider`() = runTest {
+        val updateSuperPropertiesLambda = lambdaRecorder<SuperProperties, Unit> { _ -> }
+        val sut = createDefaultAnalyticsService(
+            coroutineScope = backgroundScope,
+            analyticsProviders = setOf(
+                FakeAnalyticsProvider(
+                    initLambda = { },
+                    updateSuperPropertiesLambda = updateSuperPropertiesLambda,
+                )
+            ),
+            analyticsStore = FakeAnalyticsStore(defaultUserConsent = true),
+        )
+        sut.updateSuperProperties(aSuperProperty)
+        updateSuperPropertiesLambda.assertions().isCalledOnce().with(value(aSuperProperty))
+    }
+
+    private suspend fun createDefaultAnalyticsService(
+        coroutineScope: CoroutineScope,
+        analyticsProviders: Set<@JvmSuppressWildcards AnalyticsProvider> = setOf(
+            FakeAnalyticsProvider(
+                stopLambda = { },
+            )
+        ),
+        analyticsStore: AnalyticsStore = FakeAnalyticsStore(),
+        sessionObserver: SessionObserver = NoOpSessionObserver(),
+    ) = DefaultAnalyticsService(
+        analyticsProviders = analyticsProviders,
+        analyticsStore = analyticsStore,
+        coroutineScope = coroutineScope,
+        sessionObserver = sessionObserver,
+    ).also {
+        // Wait for the service to be ready
+        delay(1)
+    }
+
+    private companion object {
+        private val anEvent = PollEnd()
+        private val aScreen = MobileScreen(screenName = MobileScreen.ScreenName.User)
+        private val aUserProperty = UserProperties(
+            ftueUseCaseSelection = UserProperties.FtueUseCaseSelection.WorkMessaging,
+        )
+        private val aSuperProperty = SuperProperties(
+            appPlatform = SuperProperties.AppPlatform.EXA,
+            cryptoSDK = SuperProperties.CryptoSDK.Rust,
+            cryptoSDKVersion = "0.0"
+        )
+        private val anError = Exception("a reason")
+        private const val AN_ID = "anId"
+    }
+}

services/analytics/impl/src/test/kotlin/io/element/android/services/analytics/impl/DefaultScreenTrackerTest.kt

@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ * Copyright 2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.impl
+
+import androidx.lifecycle.Lifecycle
+import app.cash.molecule.RecompositionMode
+import app.cash.molecule.moleculeFlow
+import app.cash.turbine.test
+import com.google.common.truth.Truth.assertThat
+import im.vector.app.features.analytics.plan.MobileScreen
+import io.element.android.services.analytics.api.AnalyticsService
+import io.element.android.services.analytics.test.FakeAnalyticsService
+import io.element.android.services.toolbox.api.systemclock.SystemClock
+import io.element.android.services.toolbox.test.systemclock.FakeSystemClock
+import io.element.android.tests.testutils.FakeLifecycleOwner
+import io.element.android.tests.testutils.withFakeLifecycleOwner
+import kotlinx.coroutines.test.runTest
+import org.junit.Test
+
+class DefaultScreenTrackerTest {
+    @Test
+    fun `TrackScreen is working as expected`() = runTest {
+        val analyticsService = FakeAnalyticsService()
+        val systemClock = FakeSystemClock(150)
+        val lifecycleOwner = FakeLifecycleOwner()
+        val sut = createDefaultScreenTracker(
+            analyticsService = analyticsService,
+            systemClock = systemClock,
+        )
+        moleculeFlow(RecompositionMode.Immediate) {
+            withFakeLifecycleOwner(lifecycleOwner) {
+                sut.TrackScreen(MobileScreen.ScreenName.RoomMembers)
+            }
+        }.test {
+            // Screen resumes
+            lifecycleOwner.givenState(Lifecycle.State.RESUMED)
+            assertThat(awaitItem()).isEqualTo(Unit)
+            systemClock.epochMillisResult = 450
+            lifecycleOwner.givenState(Lifecycle.State.DESTROYED)
+        }
+        assertThat(analyticsService.screenEvents).containsExactly(
+            MobileScreen(
+                screenName = MobileScreen.ScreenName.RoomMembers,
+                durationMs = 300,
+            )
+        )
+    }
+}
+
+private fun createDefaultScreenTracker(
+    analyticsService: AnalyticsService = FakeAnalyticsService(),
+    systemClock: SystemClock = FakeSystemClock(),
+) = DefaultScreenTracker(
+    analyticsService = analyticsService,
+    systemClock = systemClock,
+)

services/analytics/impl/src/test/kotlin/io/element/android/services/analytics/impl/store/FakeAnalyticsStore.kt

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ * Copyright 2024, 2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.impl.store
+
+import io.element.android.tests.testutils.lambda.lambdaError
+import kotlinx.coroutines.flow.MutableStateFlow
+
+internal class FakeAnalyticsStore(
+    defaultUserConsent: Boolean = false,
+    defaultDidAskUserConsent: Boolean = false,
+    defaultAnalyticsId: String = "",
+    private val resetLambda: () -> Unit = { lambdaError() },
+) : AnalyticsStore {
+    override val userConsentFlow = MutableStateFlow(defaultUserConsent)
+    override val didAskUserConsentFlow = MutableStateFlow(defaultDidAskUserConsent)
+    override val analyticsIdFlow = MutableStateFlow(defaultAnalyticsId)
+
+    override suspend fun setUserConsent(newUserConsent: Boolean) {
+        userConsentFlow.emit(newUserConsent)
+    }
+
+    override suspend fun setDidAskUserConsent(newValue: Boolean) {
+        didAskUserConsentFlow.emit(newValue)
+    }
+
+    override suspend fun setAnalyticsId(newAnalyticsId: String) {
+        analyticsIdFlow.emit(newAnalyticsId)
+    }
+
+    override suspend fun reset() {
+        resetLambda()
+    }
+}

services/analytics/impl/src/test/kotlin/io/element/android/services/analytics/impl/watchers/DefaultAnalyticsColdStartWatcherTest.kt

@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.impl.watchers
+
+import com.google.common.truth.Truth.assertThat
+import io.element.android.services.analytics.api.AnalyticsLongRunningTransaction.ColdStartUntilCachedRoomList
+import io.element.android.services.analytics.test.FakeAnalyticsService
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.test.TestScope
+import kotlinx.coroutines.test.runCurrent
+import kotlinx.coroutines.test.runTest
+import org.junit.Test
+
+@OptIn(ExperimentalCoroutinesApi::class)
+class DefaultAnalyticsColdStartWatcherTest {
+    @Test
+    fun `watch - until room list is visible`() = runTest {
+        val analyticsService = FakeAnalyticsService()
+        val watcher = createAnalyticsColdStartWatcher(analyticsService)
+
+        // Start watching
+        watcher.start()
+
+        // The user has given analytics consent, we can start tracking the cold start
+        analyticsService.setUserConsent(true)
+        runCurrent()
+
+        // The transaction is running
+        assertThat(analyticsService.getLongRunningTransaction(ColdStartUntilCachedRoomList)).isNotNull()
+
+        // As soon as the room list is visible
+        watcher.onRoomListVisible()
+        runCurrent()
+
+        // The transaction is now finished
+        assertThat(analyticsService.getLongRunningTransaction(ColdStartUntilCachedRoomList)).isNull()
+    }
+
+    @Test
+    fun `watch - user is logging in, transaction is cancelled since it's not a cold start`() = runTest {
+        val analyticsService = FakeAnalyticsService()
+        val watcher = createAnalyticsColdStartWatcher(analyticsService)
+
+        // Start watching
+        watcher.start()
+
+        // The user has given analytics consent, we can start tracking the cold start
+        analyticsService.setUserConsent(true)
+        runCurrent()
+
+        // The transaction is running
+        assertThat(analyticsService.getLongRunningTransaction(ColdStartUntilCachedRoomList)).isNotNull()
+
+        // If the user starts a login flow
+        watcher.whenLoggingIn()
+        runCurrent()
+
+        // The transaction is gone
+        assertThat(analyticsService.getLongRunningTransaction(ColdStartUntilCachedRoomList)).isNull()
+    }
+
+    @Test
+    fun `watch - user was logging in, transaction is never started since it's not a cold start`() = runTest {
+        val analyticsService = FakeAnalyticsService()
+        val watcher = createAnalyticsColdStartWatcher(analyticsService)
+
+        // Start watching
+        watcher.start()
+
+        // If the user starts a login flow
+        watcher.whenLoggingIn()
+
+        // The user has given analytics consent, we can start tracking the cold start
+        analyticsService.setUserConsent(true)
+        runCurrent()
+
+        // The transaction never starts
+        assertThat(analyticsService.getLongRunningTransaction(ColdStartUntilCachedRoomList)).isNull()
+    }
+
+    @Test
+    fun `watch - never gets consent so it does nothing`() = runTest {
+        val analyticsService = FakeAnalyticsService()
+        val watcher = createAnalyticsColdStartWatcher(analyticsService)
+
+        // Start watching
+        watcher.start()
+
+        // The user never gets the analytics consent, so we do nothing
+        runCurrent()
+
+        // The transaction is not running in that case
+        assertThat(analyticsService.getLongRunningTransaction(ColdStartUntilCachedRoomList)).isNull()
+    }
+
+    private fun TestScope.createAnalyticsColdStartWatcher(
+        analyticsService: FakeAnalyticsService = FakeAnalyticsService(),
+    ) = DefaultAnalyticsColdStartWatcher(
+        analyticsService = analyticsService,
+        appCoroutineScope = backgroundScope,
+    )
+}

services/analytics/impl/src/test/kotlin/io/element/android/services/analytics/impl/watchers/DefaultAnalyticsRoomListStateWatcherTest.kt

@@ -0,0 +1,170 @@
+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.impl.watchers
+
+import com.google.common.truth.Truth.assertThat
+import io.element.android.libraries.matrix.api.roomlist.RoomListService
+import io.element.android.libraries.matrix.test.roomlist.FakeRoomListService
+import io.element.android.services.analytics.api.AnalyticsLongRunningTransaction.ResumeAppUntilNewRoomsReceived
+import io.element.android.services.analytics.test.FakeAnalyticsService
+import io.element.android.services.appnavstate.api.AppNavigationState
+import io.element.android.services.appnavstate.api.NavigationState
+import io.element.android.services.appnavstate.test.FakeAppNavigationStateService
+import io.element.android.tests.testutils.testCoroutineDispatchers
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.test.TestScope
+import kotlinx.coroutines.test.runCurrent
+import kotlinx.coroutines.test.runTest
+import org.junit.Test
+
+@OptIn(ExperimentalCoroutinesApi::class)
+class DefaultAnalyticsRoomListStateWatcherTest {
+    @Test
+    fun `Opening the app in a warm state tracks the time until the room list is synced`() = runTest {
+        val navigationStateService = FakeAppNavigationStateService()
+        val roomListService = FakeRoomListService().apply {
+            postState(RoomListService.State.Idle)
+        }
+        val analyticsService = FakeAnalyticsService()
+        val watcher = createAnalyticsRoomListStateWatcher(
+            appNavigationStateService = navigationStateService,
+            roomListService = roomListService,
+            analyticsService = analyticsService,
+        )
+
+        watcher.start()
+
+        // Give some time to load the initial state
+        runCurrent()
+
+        // Make sure it's warm by changing its internal state
+        navigationStateService.appNavigationState.emit(AppNavigationState(navigationState = NavigationState.Root, isInForeground = false))
+        runCurrent()
+        navigationStateService.appNavigationState.emit(AppNavigationState(navigationState = NavigationState.Root, isInForeground = true))
+        runCurrent()
+
+        // The transaction should be present now
+        assertThat(analyticsService.getLongRunningTransaction(ResumeAppUntilNewRoomsReceived)).isNotNull()
+
+        // And now the room list service running
+        roomListService.postState(RoomListService.State.Running)
+        runCurrent()
+
+        // And the transaction should now be gone
+        assertThat(analyticsService.getLongRunningTransaction(ResumeAppUntilNewRoomsReceived)).isNull()
+
+        watcher.stop()
+    }
+
+    @Test
+    fun `Opening the app in a cold state does nothing`() = runTest {
+        val navigationStateService = FakeAppNavigationStateService().apply {
+            appNavigationState.emit(AppNavigationState(NavigationState.Root, false))
+        }
+        val roomListService = FakeRoomListService().apply {
+            postState(RoomListService.State.Idle)
+        }
+        val analyticsService = FakeAnalyticsService()
+        val watcher = createAnalyticsRoomListStateWatcher(
+            appNavigationStateService = navigationStateService,
+            roomListService = roomListService,
+            analyticsService = analyticsService,
+        )
+
+        watcher.start()
+
+        // Give some time to load the initial state
+        runCurrent()
+
+        // The room list service running
+        roomListService.postState(RoomListService.State.Running)
+        runCurrent()
+
+        // The transaction was never present
+        assertThat(analyticsService.getLongRunningTransaction(ResumeAppUntilNewRoomsReceived)).isNull()
+
+        watcher.stop()
+    }
+
+    @Test
+    fun `The transaction won't be finished until the room list is synchronised`() = runTest {
+        val navigationStateService = FakeAppNavigationStateService()
+        val roomListService = FakeRoomListService().apply {
+            postState(RoomListService.State.Idle)
+        }
+        val analyticsService = FakeAnalyticsService()
+        val watcher = createAnalyticsRoomListStateWatcher(
+            appNavigationStateService = navigationStateService,
+            roomListService = roomListService,
+            analyticsService = analyticsService,
+        )
+
+        watcher.start()
+
+        // Give some time to load the initial state
+        runCurrent()
+
+        // Make sure it's warm by changing its internal state
+        navigationStateService.appNavigationState.emit(AppNavigationState(navigationState = NavigationState.Root, isInForeground = false))
+        runCurrent()
+        navigationStateService.appNavigationState.emit(AppNavigationState(navigationState = NavigationState.Root, isInForeground = true))
+        runCurrent()
+
+        // The transaction should be present now
+        assertThat(analyticsService.getLongRunningTransaction(ResumeAppUntilNewRoomsReceived)).isNotNull()
+
+        runCurrent()
+
+        // But without the room list syncing, it never finishes
+        assertThat(analyticsService.getLongRunningTransaction(ResumeAppUntilNewRoomsReceived)).isNotNull()
+
+        watcher.stop()
+    }
+
+    @Test
+    fun `Opening the app when the room list state was already Running does nothing`() = runTest {
+        val navigationStateService = FakeAppNavigationStateService()
+        val roomListService = FakeRoomListService().apply {
+            postState(RoomListService.State.Running)
+        }
+        val analyticsService = FakeAnalyticsService()
+        val watcher = createAnalyticsRoomListStateWatcher(
+            appNavigationStateService = navigationStateService,
+            roomListService = roomListService,
+            analyticsService = analyticsService,
+        )
+
+        watcher.start()
+
+        // Give some time to load the initial state
+        runCurrent()
+
+        // Make sure it's warm by changing its internal state
+        navigationStateService.appNavigationState.emit(AppNavigationState(navigationState = NavigationState.Root, isInForeground = false))
+        runCurrent()
+        navigationStateService.appNavigationState.emit(AppNavigationState(navigationState = NavigationState.Root, isInForeground = true))
+        runCurrent()
+
+        // The transaction was never added
+        assertThat(analyticsService.getLongRunningTransaction(ResumeAppUntilNewRoomsReceived)).isNull()
+
+        watcher.stop()
+    }
+
+    private fun TestScope.createAnalyticsRoomListStateWatcher(
+        appNavigationStateService: FakeAppNavigationStateService = FakeAppNavigationStateService(),
+        roomListService: FakeRoomListService = FakeRoomListService(),
+        analyticsService: FakeAnalyticsService = FakeAnalyticsService(),
+    ) = DefaultAnalyticsRoomListStateWatcher(
+        appNavigationStateService = appNavigationStateService,
+        roomListService = roomListService,
+        analyticsService = analyticsService,
+        sessionCoroutineScope = backgroundScope,
+        dispatchers = testCoroutineDispatchers(),
+    )
+}

services/analytics/noop/build.gradle.kts

@@ -0,0 +1,26 @@
+import extension.setupDependencyInjection
+import extension.testCommonDependencies
+
+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ * Copyright 2023, 2024 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+plugins {
+    id("io.element.android-compose-library")
+}
+
+android {
+    namespace = "io.element.android.services.analytics.noop"
+}
+
+setupDependencyInjection()
+
+dependencies {
+    implementation(projects.libraries.architecture)
+    implementation(projects.libraries.di)
+    api(projects.services.analytics.api)
+    testCommonDependencies(libs)
+}

services/analytics/noop/src/main/kotlin/io/element/android/services/analytics/noop/NoopAnalyticsService.kt

@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ * Copyright 2023-2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.noop
+
+import dev.zacsweers.metro.AppScope
+import dev.zacsweers.metro.ContributesBinding
+import dev.zacsweers.metro.SingleIn
+import im.vector.app.features.analytics.itf.VectorAnalyticsEvent
+import im.vector.app.features.analytics.itf.VectorAnalyticsScreen
+import im.vector.app.features.analytics.plan.SuperProperties
+import im.vector.app.features.analytics.plan.UserProperties
+import io.element.android.services.analytics.api.AnalyticsLongRunningTransaction
+import io.element.android.services.analytics.api.AnalyticsService
+import io.element.android.services.analytics.api.NoopAnalyticsTransaction
+import io.element.android.services.analyticsproviders.api.AnalyticsProvider
+import io.element.android.services.analyticsproviders.api.AnalyticsTransaction
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.flowOf
+
+@SingleIn(AppScope::class)
+@ContributesBinding(AppScope::class)
+class NoopAnalyticsService : AnalyticsService {
+    override fun getAvailableAnalyticsProviders(): Set<AnalyticsProvider> = emptySet()
+    override val userConsentFlow: Flow<Boolean> = flowOf(false)
+    override suspend fun setUserConsent(userConsent: Boolean) = Unit
+    override val didAskUserConsentFlow: Flow<Boolean> = flowOf(true)
+    override suspend fun setDidAskUserConsent() = Unit
+    override val analyticsIdFlow: Flow<String> = flowOf("")
+    override suspend fun setAnalyticsId(analyticsId: String) = Unit
+    override fun capture(event: VectorAnalyticsEvent) = Unit
+    override fun screen(screen: VectorAnalyticsScreen) = Unit
+    override fun updateUserProperties(userProperties: UserProperties) = Unit
+    override fun trackError(throwable: Throwable) = Unit
+    override fun updateSuperProperties(updatedProperties: SuperProperties) = Unit
+    override fun startTransaction(name: String, operation: String?): AnalyticsTransaction = NoopAnalyticsTransaction
+    override fun startLongRunningTransaction(
+        longRunningTransaction: AnalyticsLongRunningTransaction,
+        parentTransaction: AnalyticsTransaction?,
+    ): AnalyticsTransaction = NoopAnalyticsTransaction
+    override fun getLongRunningTransaction(longRunningTransaction: AnalyticsLongRunningTransaction): AnalyticsTransaction? = null
+    override fun removeLongRunningTransaction(longRunningTransaction: AnalyticsLongRunningTransaction) = NoopAnalyticsTransaction
+}

services/analytics/noop/src/main/kotlin/io/element/android/services/analytics/noop/NoopScreenTracker.kt

@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ * Copyright 2024, 2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.noop
+
+import androidx.compose.runtime.Composable
+import dev.zacsweers.metro.AppScope
+import dev.zacsweers.metro.ContributesBinding
+import im.vector.app.features.analytics.plan.MobileScreen
+import io.element.android.services.analytics.api.ScreenTracker
+
+@ContributesBinding(AppScope::class)
+class NoopScreenTracker : ScreenTracker {
+    @Composable
+    override fun TrackScreen(screen: MobileScreen.ScreenName) = Unit
+}

services/analytics/noop/src/main/kotlin/io/element/android/services/analytics/noop/watchers/NoopAnalyticsColdStartWatcher.kt

@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.noop.watchers
+
+import dev.zacsweers.metro.AppScope
+import dev.zacsweers.metro.ContributesBinding
+import io.element.android.services.analytics.api.watchers.AnalyticsColdStartWatcher
+
+@ContributesBinding(AppScope::class)
+class NoopAnalyticsColdStartWatcher : AnalyticsColdStartWatcher {
+    override fun start() {}
+    override fun whenLoggingIn() {}
+    override fun onRoomListVisible() {}
+}

services/analytics/noop/src/main/kotlin/io/element/android/services/analytics/noop/watchers/NoopAnalyticsRoomListStateWatcher.kt

@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.noop.watchers
+
+import dev.zacsweers.metro.ContributesBinding
+import io.element.android.libraries.di.SessionScope
+import io.element.android.services.analytics.api.watchers.AnalyticsRoomListStateWatcher
+
+@ContributesBinding(SessionScope::class)
+class NoopAnalyticsRoomListStateWatcher : AnalyticsRoomListStateWatcher {
+    override fun start() {}
+    override fun stop() {}
+}

services/analytics/noop/src/test/kotlin/io/element/android/services/analytics/noop/NoopAnalyticsServiceTest.kt

@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ * Copyright 2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.noop
+
+import app.cash.turbine.test
+import com.google.common.truth.Truth.assertThat
+import im.vector.app.features.analytics.plan.CallStarted
+import im.vector.app.features.analytics.plan.MobileScreen
+import im.vector.app.features.analytics.plan.SuperProperties
+import im.vector.app.features.analytics.plan.UserProperties
+import kotlinx.coroutines.test.runTest
+import org.junit.Test
+
+class NoopAnalyticsServiceTest {
+    @Test
+    fun `getAvailableAnalyticsProviders returns emptySet`() {
+        val sut = NoopAnalyticsService()
+        assertThat(sut.getAvailableAnalyticsProviders()).isEmpty()
+    }
+
+    @Test
+    fun `didAskUserConsentFlow emits only true`() = runTest {
+        val sut = NoopAnalyticsService()
+        sut.didAskUserConsentFlow.test {
+            assertThat(awaitItem()).isTrue()
+            awaitComplete()
+        }
+    }
+
+    @Test
+    fun `analyticsIdFlow emits only empty string`() = runTest {
+        val sut = NoopAnalyticsService()
+        sut.analyticsIdFlow.test {
+            assertThat(awaitItem()).isEmpty()
+            sut.setAnalyticsId("anId")
+            awaitComplete()
+        }
+    }
+
+    @Test
+    fun `userConsentFlow emits only false`() = runTest {
+        val sut = NoopAnalyticsService()
+        sut.userConsentFlow.test {
+            assertThat(awaitItem()).isFalse()
+            awaitComplete()
+        }
+    }
+
+    @Test
+    fun `test no op methods`() = runTest {
+        val sut = NoopAnalyticsService()
+        sut.setUserConsent(false)
+        sut.setUserConsent(true)
+        sut.setDidAskUserConsent()
+        sut.setAnalyticsId("anId")
+        sut.capture(CallStarted(true, 1, true))
+        sut.screen(MobileScreen(screenName = MobileScreen.ScreenName.RoomMembers))
+        sut.updateUserProperties(UserProperties())
+        sut.trackError(Exception("an_error"))
+        sut.updateSuperProperties(SuperProperties())
+    }
+}

services/analytics/noop/src/test/kotlin/io/element/android/services/analytics/noop/NoopScreenTrackerTest.kt

@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ * Copyright 2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.noop
+
+import app.cash.molecule.RecompositionMode
+import app.cash.molecule.moleculeFlow
+import app.cash.turbine.test
+import com.google.common.truth.Truth.assertThat
+import im.vector.app.features.analytics.plan.MobileScreen
+import kotlinx.coroutines.test.runTest
+import org.junit.Test
+
+class NoopScreenTrackerTest {
+    @Test
+    fun `TrackScreen is no op`() = runTest {
+        val sut = NoopScreenTracker()
+        moleculeFlow(RecompositionMode.Immediate) {
+            sut.TrackScreen(MobileScreen.ScreenName.RoomMembers)
+        }.test {
+            assertThat(awaitItem()).isEqualTo(Unit)
+        }
+    }
+}

services/analytics/test/build.gradle.kts

@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ * Copyright 2023-2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+plugins {
+    id("io.element.android-compose-library")
+}
+
+android {
+    namespace = "io.element.android.services.analytics.test"
+}
+
+dependencies {
+    api(projects.services.analytics.api)
+    implementation(projects.libraries.core)
+    implementation(projects.tests.testutils)
+    implementation(libs.coroutines.core)
+}

services/analytics/test/src/main/kotlin/io/element/android/services/analytics/test/FakeAnalyticsService.kt

@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ * Copyright 2023-2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.test
+
+import im.vector.app.features.analytics.itf.VectorAnalyticsEvent
+import im.vector.app.features.analytics.itf.VectorAnalyticsScreen
+import im.vector.app.features.analytics.plan.SuperProperties
+import im.vector.app.features.analytics.plan.UserProperties
+import io.element.android.services.analytics.api.AnalyticsLongRunningTransaction
+import io.element.android.services.analytics.api.AnalyticsService
+import io.element.android.services.analytics.api.NoopAnalyticsTransaction
+import io.element.android.services.analyticsproviders.api.AnalyticsProvider
+import io.element.android.services.analyticsproviders.api.AnalyticsTransaction
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+
+class FakeAnalyticsService(
+    isEnabled: Boolean = false,
+    didAskUserConsent: Boolean = false,
+) : AnalyticsService {
+    private val isEnabledFlow = MutableStateFlow(isEnabled)
+    override val didAskUserConsentFlow = MutableStateFlow(didAskUserConsent)
+    val capturedEvents = mutableListOf<VectorAnalyticsEvent>()
+    val screenEvents = mutableListOf<VectorAnalyticsScreen>()
+    val trackedErrors = mutableListOf<Throwable>()
+    val capturedUserProperties = mutableListOf<UserProperties>()
+    val longRunningTransactions = mutableMapOf<AnalyticsLongRunningTransaction, AnalyticsTransaction>()
+
+    override fun getAvailableAnalyticsProviders(): Set<AnalyticsProvider> = emptySet()
+
+    override val userConsentFlow: Flow<Boolean> = isEnabledFlow.asStateFlow()
+
+    override suspend fun setUserConsent(userConsent: Boolean) {
+        isEnabledFlow.value = userConsent
+    }
+
+    override suspend fun setDidAskUserConsent() {
+        didAskUserConsentFlow.value = true
+    }
+
+    override val analyticsIdFlow: Flow<String> = MutableStateFlow("")
+
+    override suspend fun setAnalyticsId(analyticsId: String) {
+    }
+
+    override fun capture(event: VectorAnalyticsEvent) {
+        capturedEvents += event
+    }
+
+    override fun screen(screen: VectorAnalyticsScreen) {
+        screenEvents += screen
+    }
+
+    override fun updateUserProperties(userProperties: UserProperties) {
+        capturedUserProperties += userProperties
+    }
+
+    override fun trackError(throwable: Throwable) {
+        trackedErrors += throwable
+    }
+
+    override fun updateSuperProperties(updatedProperties: SuperProperties) {
+        // No op
+    }
+
+    override fun startTransaction(name: String, operation: String?): AnalyticsTransaction = NoopAnalyticsTransaction
+    override fun startLongRunningTransaction(
+        longRunningTransaction: AnalyticsLongRunningTransaction,
+        parentTransaction: AnalyticsTransaction?
+    ): AnalyticsTransaction {
+        longRunningTransactions[longRunningTransaction] = NoopAnalyticsTransaction
+        return NoopAnalyticsTransaction
+    }
+
+    override fun getLongRunningTransaction(longRunningTransaction: AnalyticsLongRunningTransaction): AnalyticsTransaction? {
+        return longRunningTransactions[longRunningTransaction]
+    }
+
+    override fun removeLongRunningTransaction(longRunningTransaction: AnalyticsLongRunningTransaction): AnalyticsTransaction? {
+        return longRunningTransactions.remove(longRunningTransaction)
+    }
+}

services/analytics/test/src/main/kotlin/io/element/android/services/analytics/test/FakeScreenTracker.kt

@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ * Copyright 2024, 2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.test
+
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import im.vector.app.features.analytics.plan.MobileScreen
+import io.element.android.services.analytics.api.ScreenTracker
+import io.element.android.tests.testutils.lambda.lambdaError
+
+class FakeScreenTracker(
+    private val trackScreenLambda: (MobileScreen.ScreenName) -> Unit = { lambdaError() }
+) : ScreenTracker {
+    @Composable
+    override fun TrackScreen(screen: MobileScreen.ScreenName) {
+        LaunchedEffect(Unit) {
+            trackScreenLambda(screen)
+        }
+    }
+}

services/analytics/test/src/main/kotlin/io/element/android/services/analytics/test/watchers/FakeAnalyticsColdStartWatcher.kt

@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.services.analytics.test.watchers
+
+import io.element.android.services.analytics.api.watchers.AnalyticsColdStartWatcher
+
+class FakeAnalyticsColdStartWatcher : AnalyticsColdStartWatcher {
+    override fun start() {}
+    override fun whenLoggingIn() {}
+    override fun onRoomListVisible() {}
+}