diff --git a/briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationAdapter.java b/briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationAdapter.java
index 662ea2729..84fddd084 100644
--- a/briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationAdapter.java
+++ b/briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationAdapter.java
@@ -112,40 +112,36 @@ class ConversationAdapter
 	public void add(ConversationItem item) {
 		items.beginBatchedUpdates();
 		items.add(item);
-		updateTimersInBatch(true);
+		updateTimersInBatch();
 		items.endBatchedUpdates();
 	}
 
 	@Override
 	public void addAll(Collection<ConversationItem> itemsToAdd) {
 		items.beginBatchedUpdates();
+		// there can be items already in the adapter
+		// SortedList takes care of duplicates and detecting changed items
 		items.addAll(itemsToAdd);
-		updateTimersInBatch(false);
+		updateTimersInBatch();
 		items.endBatchedUpdates();
 	}
 
-	private void updateTimersInBatch(boolean updateItems) {
+	private void updateTimersInBatch() {
 		long lastTimerIncoming = NO_AUTO_DELETE_TIMER;
 		long lastTimerOutgoing = NO_AUTO_DELETE_TIMER;
 		for (int i = 0; i < items.size(); i++) {
 			ConversationItem c = items.get(i);
 			boolean itemChanged;
 			boolean timerChanged;
-			boolean timerMirrored;
 			if (c.isIncoming()) {
 				timerChanged = lastTimerIncoming != c.getAutoDeleteTimer();
-				timerMirrored = timerChanged &&
-						lastTimerOutgoing == c.getAutoDeleteTimer();
 				lastTimerIncoming = c.getAutoDeleteTimer();
 			} else {
 				timerChanged = lastTimerOutgoing != c.getAutoDeleteTimer();
-				timerMirrored = timerChanged &&
-						lastTimerIncoming == c.getAutoDeleteTimer();
 				lastTimerOutgoing = c.getAutoDeleteTimer();
 			}
 			itemChanged = c.setTimerNoticeVisible(timerChanged);
-			itemChanged |= c.setTimerMirrored(timerMirrored);
-			if (itemChanged && updateItems) items.updateItemAt(i, c);
+			if (itemChanged) items.updateItemAt(i, c);
 		}
 	}
 
diff --git a/briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationItem.java b/briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationItem.java
index 2802892ce..c3d96e462 100644
--- a/briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationItem.java
+++ b/briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationItem.java
@@ -26,7 +26,7 @@ abstract class ConversationItem {
 	private final long time, autoDeleteTimer;
 	private final boolean isIncoming;
 	private final LiveData<String> contactName;
-	private boolean read, sent, seen, showTimerNotice, timerMirrored;
+	private boolean read, sent, seen, showTimerNotice;
 
 	ConversationItem(@LayoutRes int layoutRes, ConversationMessageHeader h,
 			LiveData<String> contactName) {
@@ -42,7 +42,6 @@ abstract class ConversationItem {
 		this.isIncoming = !h.isLocal();
 		this.contactName = contactName;
 		this.showTimerNotice = false;
-		this.timerMirrored = false;
 	}
 
 	@LayoutRes
@@ -143,23 +142,4 @@ abstract class ConversationItem {
 	boolean isTimerNoticeVisible() {
 		return showTimerNotice;
 	}
-
-	/**
-	 * Set this to true when {@link #getAutoDeleteTimer()} has changed
-	 * to the same timer of the last message
-	 * from the other peer in this conversation.
-	 *
-	 * @return true if the value was set, false if it was already set.
-	 */
-	public boolean setTimerMirrored(boolean timerMirrored) {
-		if (this.timerMirrored != timerMirrored) {
-			this.timerMirrored = timerMirrored;
-			return true;
-		}
-		return false;
-	}
-
-	public boolean wasTimerMirrored() {
-		return timerMirrored;
-	}
 }
diff --git a/briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationItemViewHolder.java b/briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationItemViewHolder.java
index c0d552e3f..8c3dc790d 100644
--- a/briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationItemViewHolder.java
+++ b/briar-android/src/main/java/org/briarproject/briar/android/conversation/ConversationItemViewHolder.java
@@ -84,28 +84,14 @@ abstract class ConversationItemViewHolder extends ViewHolder {
 			String text;
 			if (item.isIncoming()) {
 				String name = item.getContactName().getValue();
-				if (item.wasTimerMirrored()) {
-					int strRes = enabled ?
-							R.string.auto_delete_msg_contact_enabled_mirrored :
-							R.string.auto_delete_msg_contact_disabled_mirrored;
-					text = ctx.getString(strRes, name);
-				} else {
-					int strRes = enabled ?
-							R.string.auto_delete_msg_contact_enabled :
-							R.string.auto_delete_msg_contact_disabled;
-					text = ctx.getString(strRes, name, name);
-				}
+				int strRes = enabled ?
+						R.string.auto_delete_msg_contact_enabled :
+						R.string.auto_delete_msg_contact_disabled;
+				text = ctx.getString(strRes, name);
 			} else {
-				int strRes;
-				if (item.wasTimerMirrored()) {
-					strRes = enabled ?
-							R.string.auto_delete_msg_you_enabled_mirrored :
-							R.string.auto_delete_msg_you_disabled_mirrored;
-				} else {
-					strRes = enabled ?
-							R.string.auto_delete_msg_you_enabled :
-							R.string.auto_delete_msg_you_disabled;
-				}
+				int strRes = enabled ?
+						R.string.auto_delete_msg_you_enabled :
+						R.string.auto_delete_msg_you_disabled;
 				text = ctx.getString(strRes);
 			}
 			topNotice.setText(text);
diff --git a/briar-android/src/main/res/values/strings.xml b/briar-android/src/main/res/values/strings.xml
index 424747dd9..cc553ef2d 100644
--- a/briar-android/src/main/res/values/strings.xml
+++ b/briar-android/src/main/res/values/strings.xml
@@ -166,14 +166,10 @@
 	<string name="set_contact_alias">Change contact name</string>
 	<string name="set_contact_alias_hint">Contact name</string>
 	<string name="menu_item_auto_delete">Disappearing messages</string>
-	<string name="auto_delete_msg_you_enabled">You turned on disappearing messages. Your messages will disappear after 7 days.</string>
-	<string name="auto_delete_msg_you_disabled">You turned off disappearing messages. Your messages will not disappear.</string>
-	<string name="auto_delete_msg_you_enabled_mirrored">Your messages will disappear after 7 days.</string>
-	<string name="auto_delete_msg_you_disabled_mirrored">Your messages will not disappear.</string>
-	<string name="auto_delete_msg_contact_enabled">%1$s turned on disappearing messages. %2$s\'s messages will disappear after 7 days.</string>
-	<string name="auto_delete_msg_contact_disabled">%1$s turned off disappearing messages. %2$s\'s messages will not disappear.</string>
-	<string name="auto_delete_msg_contact_enabled_mirrored">%1$s\'s messages will disappear after 7 days.</string>
-	<string name="auto_delete_msg_contact_disabled_mirrored">%1$s\'s messages will not disappear.</string>
+	<string name="auto_delete_msg_you_enabled">Your messages will disappear after 7 days.</string>
+	<string name="auto_delete_msg_you_disabled">Your messages will not disappear.</string>
+	<string name="auto_delete_msg_contact_enabled">%1$s\'s messages will disappear after 7 days.</string>
+	<string name="auto_delete_msg_contact_disabled">%1$s\'s messages will not disappear.</string>
 	<string name="delete_all_messages">Delete all messages</string>
 	<string name="dialog_title_delete_all_messages">Confirm Message Deletion</string>
 	<string name="dialog_message_delete_all_messages">Are you sure that you want to delete all messages?</string>