diff --git a/changelog.d/5378.misc b/changelog.d/5378.misc
new file mode 100644
index 0000000000..1cf6da5e59
--- /dev/null
+++ b/changelog.d/5378.misc
@@ -0,0 +1 @@
+Add analytics support for threads
\ No newline at end of file
diff --git a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/room/timeline/TimelineEvent.kt b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/room/timeline/TimelineEvent.kt
index 01686ca04b..1b01efc074 100644
--- a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/room/timeline/TimelineEvent.kt
+++ b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/room/timeline/TimelineEvent.kt
@@ -17,6 +17,7 @@
 package org.matrix.android.sdk.api.session.room.timeline
 
 import org.matrix.android.sdk.BuildConfig
+import org.matrix.android.sdk.api.extensions.orFalse
 import org.matrix.android.sdk.api.session.events.model.Event
 import org.matrix.android.sdk.api.session.events.model.EventType
 import org.matrix.android.sdk.api.session.events.model.RelationType
@@ -159,6 +160,13 @@ fun TimelineEvent.isSticker(): Boolean {
     return root.isSticker()
 }
 
+/**
+ * Returns whether or not the event is a root thread event
+ */
+fun TimelineEvent.isRootThread(): Boolean {
+    return root.threadDetails?.isRootThread.orFalse()
+}
+
 /**
  * Get the latest message body, after a possible edition, stripping the reply prefix if necessary
  */
diff --git a/vector/src/main/java/im/vector/app/features/analytics/extensions/ComposerExt.kt b/vector/src/main/java/im/vector/app/features/analytics/extensions/ComposerExt.kt
new file mode 100644
index 0000000000..407fca2d5b
--- /dev/null
+++ b/vector/src/main/java/im/vector/app/features/analytics/extensions/ComposerExt.kt
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2022 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package im.vector.app.features.analytics.extensions
+
+import im.vector.app.features.analytics.plan.Composer
+import im.vector.app.features.home.room.detail.composer.MessageComposerViewState
+import im.vector.app.features.home.room.detail.composer.SendMode
+
+fun MessageComposerViewState.toAnalyticsComposer(): Composer =
+        Composer(
+                inThread = isInThreadTimeline(),
+                isEditing = sendMode is SendMode.Edit,
+                isReply = sendMode is SendMode.Reply,
+                startsThread = startsThread
+        )
diff --git a/vector/src/main/java/im/vector/app/features/analytics/extensions/InteractionExt.kt b/vector/src/main/java/im/vector/app/features/analytics/extensions/InteractionExt.kt
new file mode 100644
index 0000000000..3ed9c419ee
--- /dev/null
+++ b/vector/src/main/java/im/vector/app/features/analytics/extensions/InteractionExt.kt
@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2022 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package im.vector.app.features.analytics.extensions
+
+import im.vector.app.features.analytics.plan.Interaction
+
+fun Interaction.Name.toAnalyticsInteraction(interactionType: Interaction.InteractionType = Interaction.InteractionType.Touch) =
+        Interaction(
+                name = this,
+                interactionType = interactionType
+        )
diff --git a/vector/src/main/java/im/vector/app/features/home/room/detail/TimelineFragment.kt b/vector/src/main/java/im/vector/app/features/home/room/detail/TimelineFragment.kt
index 86ebe1ec19..ab64f40159 100644
--- a/vector/src/main/java/im/vector/app/features/home/room/detail/TimelineFragment.kt
+++ b/vector/src/main/java/im/vector/app/features/home/room/detail/TimelineFragment.kt
@@ -118,7 +118,8 @@ import im.vector.app.core.utils.startInstallFromSourceIntent
 import im.vector.app.core.utils.toast
 import im.vector.app.databinding.DialogReportContentBinding
 import im.vector.app.databinding.FragmentTimelineBinding
-import im.vector.app.features.analytics.plan.Composer
+import im.vector.app.features.analytics.extensions.toAnalyticsInteraction
+import im.vector.app.features.analytics.plan.Interaction
 import im.vector.app.features.analytics.plan.MobileScreen
 import im.vector.app.features.attachments.AttachmentTypeSelectorView
 import im.vector.app.features.attachments.AttachmentsHelper
@@ -1491,9 +1492,6 @@ class TimelineFragment @Inject constructor(
             return
         }
         if (text.isNotBlank()) {
-            withState(messageComposerViewModel) { state ->
-                analyticsTracker.capture(Composer(isThreadTimeLine(), isEditing = state.sendMode is SendMode.Edit, isReply = state.sendMode is SendMode.Reply))
-            }
             // We collapse ASAP, if not there will be a slight annoying delay
             views.composerLayout.collapse(true)
             lockSendButton = true
@@ -2174,7 +2172,7 @@ class TimelineFragment @Inject constructor(
             }
             is EventSharedAction.ReplyInThread              -> {
                 if (withState(messageComposerViewModel) { it.isVoiceMessageIdle }) {
-                    navigateToThreadTimeline(action.eventId)
+                    navigateToThreadTimeline(action.eventId, action.startsThread)
                 } else {
                     requireActivity().toast(R.string.error_voice_message_cannot_reply_or_edit)
                 }
@@ -2333,9 +2331,11 @@ class TimelineFragment @Inject constructor(
      * using the ThreadsActivity
      */
 
-    private fun navigateToThreadTimeline(rootThreadEventId: String) {
+    private fun navigateToThreadTimeline(rootThreadEventId: String, startsThread: Boolean = false) {
+        analyticsTracker.capture(Interaction.Name.MobileRoomThreadSummaryItem.toAnalyticsInteraction())
         context?.let {
             val roomThreadDetailArgs = ThreadTimelineArgs(
+                    startsThread = startsThread,
                     roomId = timelineArgs.roomId,
                     displayName = timelineViewModel.getRoomSummary()?.displayName,
                     avatarUrl = timelineViewModel.getRoomSummary()?.avatarUrl,
@@ -2351,6 +2351,7 @@ class TimelineFragment @Inject constructor(
      */
 
     private fun navigateToThreadList() {
+        analyticsTracker.capture(Interaction.Name.MobileRoomThreadListButton.toAnalyticsInteraction())
         context?.let {
             val roomThreadDetailArgs = ThreadTimelineArgs(
                     roomId = timelineArgs.roomId,
diff --git a/vector/src/main/java/im/vector/app/features/home/room/detail/composer/MessageComposerViewModel.kt b/vector/src/main/java/im/vector/app/features/home/room/detail/composer/MessageComposerViewModel.kt
index f7975c9029..009d898940 100644
--- a/vector/src/main/java/im/vector/app/features/home/room/detail/composer/MessageComposerViewModel.kt
+++ b/vector/src/main/java/im/vector/app/features/home/room/detail/composer/MessageComposerViewModel.kt
@@ -27,6 +27,7 @@ import im.vector.app.core.extensions.exhaustive
 import im.vector.app.core.platform.VectorViewModel
 import im.vector.app.core.resources.StringProvider
 import im.vector.app.features.analytics.AnalyticsTracker
+import im.vector.app.features.analytics.extensions.toAnalyticsComposer
 import im.vector.app.features.analytics.extensions.toAnalyticsJoinedRoom
 import im.vector.app.features.attachments.toContentAttachmentData
 import im.vector.app.features.command.CommandParser
@@ -188,6 +189,9 @@ class MessageComposerViewModel @AssistedInject constructor(
 
     private fun handleSendMessage(action: MessageComposerAction.SendMessage) {
         withState { state ->
+            analyticsTracker.capture(state.toAnalyticsComposer()).also {
+                setState { copy(startsThread = false) }
+            }
             when (state.sendMode) {
                 is SendMode.Regular -> {
                     when (val slashCommandResult = commandParser.parseSlashCommand(
diff --git a/vector/src/main/java/im/vector/app/features/home/room/detail/composer/MessageComposerViewState.kt b/vector/src/main/java/im/vector/app/features/home/room/detail/composer/MessageComposerViewState.kt
index f90f3975c6..95553eb1cd 100644
--- a/vector/src/main/java/im/vector/app/features/home/room/detail/composer/MessageComposerViewState.kt
+++ b/vector/src/main/java/im/vector/app/features/home/room/detail/composer/MessageComposerViewState.kt
@@ -19,6 +19,7 @@ package im.vector.app.features.home.room.detail.composer
 import com.airbnb.mvrx.MavericksState
 import im.vector.app.features.home.room.detail.arguments.TimelineArgs
 import im.vector.app.features.home.room.detail.composer.voice.VoiceMessageRecorderView
+import org.matrix.android.sdk.api.extensions.orFalse
 import org.matrix.android.sdk.api.session.room.timeline.TimelineEvent
 
 /**
@@ -62,6 +63,7 @@ data class MessageComposerViewState(
         val canSendMessage: CanSendStatus = CanSendStatus.Allowed,
         val isSendButtonVisible: Boolean = false,
         val rootThreadEventId: String? = null,
+        val startsThread: Boolean = false,
         val sendMode: SendMode = SendMode.Regular("", false),
         val voiceRecordingUiState: VoiceMessageRecorderView.RecordingUiState = VoiceMessageRecorderView.RecordingUiState.Idle
 ) : MavericksState {
@@ -80,6 +82,7 @@ data class MessageComposerViewState(
 
     constructor(args: TimelineArgs) : this(
             roomId = args.roomId,
+            startsThread = args.threadTimelineArgs?.startsThread.orFalse(),
             rootThreadEventId = args.threadTimelineArgs?.rootThreadEventId)
 
     fun isInThreadTimeline(): Boolean = rootThreadEventId != null
diff --git a/vector/src/main/java/im/vector/app/features/home/room/detail/timeline/action/EventSharedAction.kt b/vector/src/main/java/im/vector/app/features/home/room/detail/timeline/action/EventSharedAction.kt
index 048a4754f5..5f12c2f174 100644
--- a/vector/src/main/java/im/vector/app/features/home/room/detail/timeline/action/EventSharedAction.kt
+++ b/vector/src/main/java/im/vector/app/features/home/room/detail/timeline/action/EventSharedAction.kt
@@ -48,7 +48,7 @@ sealed class EventSharedAction(@StringRes val titleRes: Int,
     data class Reply(val eventId: String) :
             EventSharedAction(R.string.reply, R.drawable.ic_reply)
 
-    data class ReplyInThread(val eventId: String) :
+    data class ReplyInThread(val eventId: String, val startsThread: Boolean) :
             EventSharedAction(R.string.reply_in_thread, R.drawable.ic_reply_in_thread)
 
     object ViewInRoom :
diff --git a/vector/src/main/java/im/vector/app/features/home/room/detail/timeline/action/MessageActionsViewModel.kt b/vector/src/main/java/im/vector/app/features/home/room/detail/timeline/action/MessageActionsViewModel.kt
index b99dbcc220..bd4e93b25d 100644
--- a/vector/src/main/java/im/vector/app/features/home/room/detail/timeline/action/MessageActionsViewModel.kt
+++ b/vector/src/main/java/im/vector/app/features/home/room/detail/timeline/action/MessageActionsViewModel.kt
@@ -61,6 +61,7 @@ import org.matrix.android.sdk.api.session.room.timeline.TimelineEvent
 import org.matrix.android.sdk.api.session.room.timeline.getLastMessageContent
 import org.matrix.android.sdk.api.session.room.timeline.hasBeenEdited
 import org.matrix.android.sdk.api.session.room.timeline.isPoll
+import org.matrix.android.sdk.api.session.room.timeline.isRootThread
 import org.matrix.android.sdk.api.session.room.timeline.isSticker
 import org.matrix.android.sdk.flow.flow
 import org.matrix.android.sdk.flow.unwrap
@@ -329,7 +330,7 @@ class MessageActionsViewModel @AssistedInject constructor(@Assisted
             }
 
             if (canReplyInThread(timelineEvent, messageContent, actionPermissions)) {
-                add(EventSharedAction.ReplyInThread(eventId))
+                add(EventSharedAction.ReplyInThread(eventId, !timelineEvent.isRootThread()))
             }
 
             if (canViewInRoom(timelineEvent, messageContent, actionPermissions)) {
diff --git a/vector/src/main/java/im/vector/app/features/home/room/detail/timeline/factory/MessageItemFactory.kt b/vector/src/main/java/im/vector/app/features/home/room/detail/timeline/factory/MessageItemFactory.kt
index 659cef2b37..3189954e20 100644
--- a/vector/src/main/java/im/vector/app/features/home/room/detail/timeline/factory/MessageItemFactory.kt
+++ b/vector/src/main/java/im/vector/app/features/home/room/detail/timeline/factory/MessageItemFactory.kt
@@ -155,7 +155,7 @@ class MessageItemFactory @Inject constructor(
 
         if (event.root.isRedacted()) {
             // message is redacted
-            val attributes = messageItemAttributesFactory.create(null, informationData, callback, params.reactionsSummaryEvents)
+            val attributes = messageItemAttributesFactory.create(null, informationData, callback, params.reactionsSummaryEvents, threadDetails)
             return buildRedactedItem(attributes, highlight)
         }
 
diff --git a/vector/src/main/java/im/vector/app/features/home/room/threads/ThreadsActivity.kt b/vector/src/main/java/im/vector/app/features/home/room/threads/ThreadsActivity.kt
index fc76535c4c..726138ed93 100644
--- a/vector/src/main/java/im/vector/app/features/home/room/threads/ThreadsActivity.kt
+++ b/vector/src/main/java/im/vector/app/features/home/room/threads/ThreadsActivity.kt
@@ -26,6 +26,8 @@ import im.vector.app.core.extensions.addFragmentToBackstack
 import im.vector.app.core.extensions.replaceFragment
 import im.vector.app.core.platform.VectorBaseActivity
 import im.vector.app.databinding.ActivityThreadsBinding
+import im.vector.app.features.analytics.extensions.toAnalyticsInteraction
+import im.vector.app.features.analytics.plan.Interaction
 import im.vector.app.features.home.AvatarRenderer
 import im.vector.app.features.home.room.detail.TimelineFragment
 import im.vector.app.features.home.room.detail.arguments.TimelineArgs
@@ -92,6 +94,7 @@ class ThreadsActivity : VectorBaseActivity<ActivityThreadsBinding>() {
      * One usage of that is from the Threads Activity
      */
     fun navigateToThreadTimeline(threadTimelineArgs: ThreadTimelineArgs) {
+        analyticsTracker.capture(Interaction.Name.MobileThreadListThreadItem.toAnalyticsInteraction())
         val commonOption: (FragmentTransaction) -> Unit = {
             it.setCustomAnimations(
                     R.anim.animation_slide_in_right,
diff --git a/vector/src/main/java/im/vector/app/features/home/room/threads/arguments/ThreadTimelineArgs.kt b/vector/src/main/java/im/vector/app/features/home/room/threads/arguments/ThreadTimelineArgs.kt
index aadad3d97c..d3a80811ea 100644
--- a/vector/src/main/java/im/vector/app/features/home/room/threads/arguments/ThreadTimelineArgs.kt
+++ b/vector/src/main/java/im/vector/app/features/home/room/threads/arguments/ThreadTimelineArgs.kt
@@ -26,5 +26,6 @@ data class ThreadTimelineArgs(
         val displayName: String?,
         val avatarUrl: String?,
         val roomEncryptionTrustLevel: RoomEncryptionTrustLevel?,
-        val rootThreadEventId: String? = null
+        val rootThreadEventId: String? = null,
+        val startsThread: Boolean = false
 ) : Parcelable
diff --git a/vector/src/main/java/im/vector/app/features/home/room/threads/list/viewmodel/ThreadListViewModel.kt b/vector/src/main/java/im/vector/app/features/home/room/threads/list/viewmodel/ThreadListViewModel.kt
index 7a22f75bce..7f18d172e4 100644
--- a/vector/src/main/java/im/vector/app/features/home/room/threads/list/viewmodel/ThreadListViewModel.kt
+++ b/vector/src/main/java/im/vector/app/features/home/room/threads/list/viewmodel/ThreadListViewModel.kt
@@ -25,6 +25,9 @@ import dagger.assisted.AssistedInject
 import im.vector.app.core.platform.EmptyAction
 import im.vector.app.core.platform.EmptyViewEvents
 import im.vector.app.core.platform.VectorViewModel
+import im.vector.app.features.analytics.AnalyticsTracker
+import im.vector.app.features.analytics.extensions.toAnalyticsInteraction
+import im.vector.app.features.analytics.plan.Interaction
 import im.vector.app.features.home.room.threads.list.views.ThreadListFragment
 import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.flow.map
@@ -34,6 +37,7 @@ import org.matrix.android.sdk.api.session.threads.ThreadTimelineEvent
 import org.matrix.android.sdk.flow.flow
 
 class ThreadListViewModel @AssistedInject constructor(@Assisted val initialState: ThreadListViewState,
+                                                      private val analyticsTracker: AnalyticsTracker,
                                                       private val session: Session) :
         VectorViewModel<ThreadListViewState, EmptyAction, EmptyViewEvents>(initialState) {
 
@@ -113,9 +117,10 @@ class ThreadListViewModel @AssistedInject constructor(@Assisted val initialState
         }
     }
 
-    fun canHomeserverUseThreading() =  session.getHomeServerCapabilities().canUseThreading
+    fun canHomeserverUseThreading() = session.getHomeServerCapabilities().canUseThreading
 
     fun applyFiltering(shouldFilterThreads: Boolean) {
+        analyticsTracker.capture(Interaction.Name.MobileThreadListFilterItem.toAnalyticsInteraction())
         setState {
             copy(shouldFilterThreads = shouldFilterThreads)
         }
diff --git a/vector/src/main/java/im/vector/app/features/home/room/threads/list/views/ThreadListFragment.kt b/vector/src/main/java/im/vector/app/features/home/room/threads/list/views/ThreadListFragment.kt
index 949778629b..d5659efa49 100644
--- a/vector/src/main/java/im/vector/app/features/home/room/threads/list/views/ThreadListFragment.kt
+++ b/vector/src/main/java/im/vector/app/features/home/room/threads/list/views/ThreadListFragment.kt
@@ -30,6 +30,7 @@ import im.vector.app.core.extensions.cleanup
 import im.vector.app.core.extensions.configureWith
 import im.vector.app.core.platform.VectorBaseFragment
 import im.vector.app.databinding.FragmentThreadListBinding
+import im.vector.app.features.analytics.plan.MobileScreen
 import im.vector.app.features.home.AvatarRenderer
 import im.vector.app.features.home.room.detail.timeline.animation.TimelineItemAnimator
 import im.vector.app.features.home.room.threads.ThreadsActivity
@@ -62,6 +63,7 @@ class ThreadListFragment @Inject constructor(
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
+        analyticsScreenName = MobileScreen.ScreenName.ThreadList
     }
 
     override fun onOptionsItemSelected(item: MenuItem): Boolean {