diff --git a/app/mobile/src/context/useCardContext.hook.js b/app/mobile/src/context/useCardContext.hook.js
index 613a90c5..f09b6c44 100644
--- a/app/mobile/src/context/useCardContext.hook.js
+++ b/app/mobile/src/context/useCardContext.hook.js
@@ -365,7 +365,7 @@ export function useCardContext() {
       curRevision.current = rev;
       sync();
     },
-    setReadRevision: async (cardId, channelId, rev) => {
+    setChannelReadRevision: async (cardId, channelId, rev) => {
       await store.actions.setCardChannelItemReadRevision(session.current.guid, cardId, channelId, rev);
       setCardChannelReadRevision(cardId, channelId, rev);
       updateState({ cards: cards.current });
diff --git a/app/mobile/src/context/useConversationContext.hook.js b/app/mobile/src/context/useConversationContext.hook.js
index 1e4ad4c0..047dbf16 100644
--- a/app/mobile/src/context/useConversationContext.hook.js
+++ b/app/mobile/src/context/useConversationContext.hook.js
@@ -259,19 +259,26 @@ console.log("update:", topics.current.size);
   }, [card, channel]);
 
   const actions = {
-    setChannel: (channel) => {
-      if (channel == null) {
+    setChannel: (selected) => {
+      if (selected == null) {
         setView.current++;
         conversationId.current = null;
         reset.current = true;
         updateState({ subject: null, logo: null, contacts: [], topics: new Map() });
       }
-      else if (channel.cardId !== conversationId.current?.cardId || channel.channelId !== conversationId.current?.channelId) {
+      else if (selected.cardId !== conversationId.current?.cardId || selected.channelId !== conversationId.current?.channelId) {
         setView.current++;
-        conversationId.current = channel;
+        conversationId.current = selected;
         reset.current = true;
         updateState({ subject: null, logo: null, contacts: [], topics: new Map() });
         sync();
+        const { cardId, channelId, revision } = selected;
+        if (cardId) {
+          card.actions.setChannelReadRevision(cardId, channelId, revision);
+        }
+        else {
+          channel.actions.setReadRevision(channelId, revision);
+        }
       }
     },
   }
diff --git a/app/mobile/src/session/Session.jsx b/app/mobile/src/session/Session.jsx
index 37374f44..cbe9d217 100644
--- a/app/mobile/src/session/Session.jsx
+++ b/app/mobile/src/session/Session.jsx
@@ -37,27 +37,12 @@ export function Session() {
 
   const { state, actions } = useSession();
 
-  const openCards = (nav) => {
-    nav.openDrawer();
-  }
-  const closeCards = (nav) => {}
-  const openProfile = (nav) => {
-    nav.openDrawer();
-  }
-  const closeProfile = (nav) => {}
-  const openContact = (nav, cardId) => {}
-  const closeContact = (nav) => {}
-  const openConversation = (nav, cardId, channelId) => {}
-  const closeConversation = (nav) => {}
-  const openDetails = (nav, cardId, channeId) => {}
-  const closeDetails = (nav) => {}
-
   // tabbed containers
   const ConversationStackScreen = () => {
 
     const [selected, setSelected] = useState(null);
-    const setConversation = (navigation, cardId, channelId) => {
-      setSelected({ cardId, channelId });
+    const setConversation = (navigation, cardId, channelId, revision) => {
+      setSelected({ cardId, channelId, revision });
       navigation.navigate('conversation');
     }
     const clearConversation = (navigation) => {
@@ -91,7 +76,7 @@ export function Session() {
             headerBackTitleVisible: false, 
             headerTitle: (props) => <ChannelsTitle state={channels.state} actions={channels.actions} />
           }}>
-          {(props) => <ChannelsBody state={channels.state} actions={channels.actions} openConversation={(cardId, channelId) => setConversation(props.navigation, cardId, channelId)} />}
+          {(props) => <ChannelsBody state={channels.state} actions={channels.actions} openConversation={(cardId, channelId, revision) => setConversation(props.navigation, cardId, channelId, revision)} />}
         </ConversationStack.Screen>
         <ConversationStack.Screen name="conversation" options={{
             headerStyle: { backgroundColor: Colors.titleBackground }, 
@@ -166,8 +151,8 @@ export function Session() {
   const HomeScreen = ({ cardNav, registryNav, detailNav, contactNav, profileNav, setDetails, resetConversation, clearReset }) => {
 
     const [channel, setChannel] = useState(null);
-    const setConversation = (cardId, channelId) => {
-      setChannel({ cardId, channelId });
+    const setConversation = (cardId, channelId, revision) => {
+      setChannel({ cardId, channelId, revision });
     };
     const clearConversation = () => {
       setChannel(null);
diff --git a/app/mobile/src/session/channels/channelItem/ChannelItem.jsx b/app/mobile/src/session/channels/channelItem/ChannelItem.jsx
index ea31739e..d2701fdd 100644
--- a/app/mobile/src/session/channels/channelItem/ChannelItem.jsx
+++ b/app/mobile/src/session/channels/channelItem/ChannelItem.jsx
@@ -8,7 +8,7 @@ export function ChannelItem({ item, openConversation }) {
   const { state, actions } = useChannelItem(item);
 
   return (
-    <TouchableOpacity style={styles.container} activeOpacity={1} onPress={() => openConversation(item.cardId, item.channelId)}>
+    <TouchableOpacity style={styles.container} activeOpacity={1} onPress={() => openConversation(item.cardId, item.channelId, item.revision)}>
       <Logo src={item.logo} width={32} height={32} radius={6} />
       <View style={styles.detail}>
         <Text style={styles.subject} numberOfLines={1} ellipsizeMode={'tail'}>{ item.subject }</Text>
diff --git a/app/mobile/src/session/channels/useChannels.hook.js b/app/mobile/src/session/channels/useChannels.hook.js
index 95f79bc4..13d1d85b 100644
--- a/app/mobile/src/session/channels/useChannels.hook.js
+++ b/app/mobile/src/session/channels/useChannels.hook.js
@@ -124,7 +124,9 @@ export function useChannels() {
       }
     }
 
-    return { cardId: item.cardId, channelId: item.channelId, contacts, logo, subject, message, updated, revision: item.revision };
+    const timestamp = item?.summary?.lastTopic?.created;
+
+    return { cardId: item.cardId, channelId: item.channelId, contacts, logo, subject, message, updated, revision: item.revision, timestamp };
   }
 
   useEffect(() => {
@@ -152,8 +154,8 @@ export function useChannels() {
     });
 
     const sorted = filtered.sort((a, b) => {
-      const aCreated = a?.summary?.lastTopic?.created;
-      const bCreated = b?.summary?.lastTopic?.created;
+      const aCreated = a?.timestamp;
+      const bCreated = b?.timestamp;
       if (aCreated === bCreated) {
         return 0;
       }