diff --git a/app/mobile/src/context/useCardContext.hook.js b/app/mobile/src/context/useCardContext.hook.js
index 1d9aa38f..c903d8ed 100644
--- a/app/mobile/src/context/useCardContext.hook.js
+++ b/app/mobile/src/context/useCardContext.hook.js
@@ -82,12 +82,15 @@ export function useCardContext() {
     };
   };
 
-  const setCardChannelField = (cardId, channelId, field, value) => {
+  const setCardChannelField = (cardId, channelId, field, value, field2, value2) => {
     const card = cards.current.get(cardId);
     if (card) {
       const channel = card.channels.get(channelId);
       if (channel) {
         channel[field] = value;
+        if(field2) {
+          channel[field2] = value2;
+        }
         card.channels.set(channelId, { ...channel });
         cards.current.set(cardId, { ...card });
       }
@@ -374,7 +377,7 @@ export function useCardContext() {
     getTopics: async (cardId, channelId, revision, count, begin, end) => {
       const { detail, profile } = cards.current.get(cardId) || {};
       const cardToken = `${profile?.guid}.${detail?.token}`;
-      return await store.actions.getCardChannelTopicItems(guid, cardId, channelId);
+      return await getContactChannelTopics(profile?.node, cardToken, channelId);
     },
     getChannelTopic: async (cardId, channelId, topicId) => {
       const { detail, profile } = cards.current.get(cardId) || {};
@@ -401,6 +404,11 @@ export function useCardContext() {
       await store.actions.setCardChannelItemTopicMarker(guid, cardId, channelId, marker);
       setCardField(cardId, 'topicMarker', marker);
     },
+    setChannelMarkerAndSync: async (cardId, channelId, marker, revision) => {
+      const { guid } = access.current;
+      await store.actions.setCardChannelItemMarkerAndSync(guid, cardId, channelId, marker, revision);
+      setCardField(cardId, 'topicMarker', marker, 'syncRevision', revision);
+    },
     setCardFlag: async (cardId) => {
       const { guid } = acccess.current;
       await store.actions.setCardItemBlocked(guid, cardId);
@@ -451,15 +459,15 @@ export function useCardContext() {
       const { guid } = access.current;
       return await store.actions.getCardChannelTopicItems(guid, cardId, channelId);
     },
-    setChannelTopicItem: async (cardId, channelId, topicId, topic) => {
+    setTopicItem: async (cardId, channelId, topicId, topic) => {
       const { guid } = access.current;
       return await store.actions.setCardChannelTopicItem(guid, cardId, channelId, topicId, topic);
     },
-    clearChannelTopicItem: async (cardId, channelId, topicId) => {
+    clearTopicItem: async (cardId, channelId, topicId) => {
       const { guid } = access.current;
       return await store.actions.clearCardChannelTopicItem(guid, cardId, channelId, topicId);
     },
-    clearChannelTopicItems: async (cardId, channelId) => {
+    clearTopicItems: async (cardId, channelId) => {
       const { guid } = access.current;
       return await store.actions.clearCardChannelTopicItems(guid, cardId, channelId);
     },
diff --git a/app/mobile/src/context/useChannelContext.hook.js b/app/mobile/src/context/useChannelContext.hook.js
index a93ddb16..0a6270ff 100644
--- a/app/mobile/src/context/useChannelContext.hook.js
+++ b/app/mobile/src/context/useChannelContext.hook.js
@@ -47,9 +47,12 @@ export function useChannelContext() {
     }
   }
 
-  const setChannelField = (channelId, field, value) => {
+  const setChannelField = (channelId, field, value, field2, value2) => {
     const channel = channels.get(channelId) || {};
     channel[field] = value;
+    if (field2) {
+      channel[field2] = value2;
+    }
     channels.set(channelId, { ...channel });
     updateState({ channels: channels.current }); 
   };
@@ -223,6 +226,11 @@ export function useChannelContext() {
       await store.actions.setChannelItemTopicMarker(guid, channelId, revision);
       setChannelField(channelId, 'topicMarker', marker);
     },
+    setMarkerAndSync: async (channelId, marker, revision) => {
+      const { guid } = access.current;
+      await store.actions.setChannelItemMarkerAndSync(guid, channelId, revision);
+      setChannelField(channelId, 'topicMarker', marker, 'syncRevision', revision);
+    },
     setChannelFlag: async (channelId) => {
       const { guid } = access.current;
       await store.actions.setChannelItemBlocked(guid, channelId);
@@ -249,7 +257,7 @@ export function useChannelContext() {
       const { server, guid } = access.current;
       return await addFlag(server, guid, channelId, topicId);
     },
-    getTopicItems: async (channelId, revision, count, begin, end) => {
+    getTopicItems: async (channelId) => {
       const { guid } = access.current;
       return await store.actions.getChannelTopicItems(guid, channelId); 
     },
diff --git a/app/mobile/src/context/useConversationContext.hook.js b/app/mobile/src/context/useConversationContext.hook.js
index b67f3ce7..18673cad 100644
--- a/app/mobile/src/context/useConversationContext.hook.js
+++ b/app/mobile/src/context/useConversationContext.hook.js
@@ -8,670 +8,402 @@ import moment from 'moment';
 import CryptoJS from 'crypto-js';
 
 export function useConversationContext() {
+  const COUNT = 64;
+
   const [state, setState] = useState({
-    topic: null,
-    subject: null,
-    logo: null,
-    revision: null,
-    contacts: [],
+    offsync: false,
     topics: new Map(),
-    created: null,
-    host: null,
-    init: false,
-    progress: null,
-    cardId: null,
-    channelId: null,
-    pushEnabled: null,
-    locked: false,
-    unlocked: false,
-    seals: null,
+    card: null,
+    channel: null,
   });
-  const store = useContext(StoreContext);
-  const upload = useContext(UploadContext);
   const card = useContext(CardContext);
   const channel = useContext(ChannelContext);
-  const profile = useContext(ProfileContext);
-  const topics = useRef(null);
-  const revision = useRef(null);
-  const force = useRef(false);
-  const more = useRef(false);
-  const detailRevision = useRef(0);
-  const syncing = useRef(false);
-  const conversationId = useRef(null);
+
   const reset = useRef(false);
-  const setView = useRef(0);
-  const transfer = useRef(null);
+  const more = useRef(false);
+  const force = useRef(false);
+  const syncing = useRef(false);
+  const update = useRef(false);
+ 
+  const loaded = useRef(false);
+  const conversationId = useRef(null);
+  const topics = useRef(new Map());
 
   const updateState = (value) => {
     setState((s) => ({ ...s, ...value }))
   }
 
-  useEffect(() => {
-    const { cardId, channelId } = state;
-    const key = cardId ? `${cardId}:${channelId}` : `:${channelId}`
-    const progress = upload.state.progress.get(key);
-    if (progress) {
-      let count = 0;
-      let complete = 0;
-      let active = 0;
-      let loaded = 0;
-      let total = 0;
-      let error = false;
-      progress.forEach(post => {
-        count += post.count;
-        complete += (post.index - 1);
-        if (post.active) {
-          active += 1;
-          loaded += post.active.loaded;
-          total += post.active.total;
-        }
-        if (post.error) {
-          error = true;
-        }
-      });
-      percent = Math.floor(((((loaded / total) * active) + complete) / count) * 100);
-      if (transfer.current == null || error || Math.abs(transfer.current - percent) > 5) {
-        updateState({ progress: percent, uploadError: error });
-        transfer.current = percent;
-      }
-
-      if (error) {
-        setTimeout(() => {
-          upload.actions.clearErrors(cardId, channelId);
-          updateState({ progress: null, uploadError: false });
-          transfer.current = null;
-        }, 2000);
-      }
-    }
-    else {
-      updateState({ progress: null });
-      transfer.current = null;
-    }
-  }, [upload, state.cardId, state.channelId]);
-
-  const getTopicItems = async (cardId, channelId) => {
-    if (cardId) {
-      return await card.actions.getChannelTopicItems(cardId, channelId);
-    }
-    return await channel.actions.getTopicItems(channelId);
-  }
-  const setTopicItem = async (cardId, channelId, topic) => {
-    if (cardId) {
-      return await card.actions.setChannelTopicItem(cardId, channelId, topic);
-    }
-    return await channel.actions.setTopicItem(channelId, topic);
-  }
-  const clearTopicItem = async (cardId, channelId, topicId) => {
-    if (cardId) {
-      return await card.actions.clearChannelTopicItem(cardId, channelId, topicId);
-    }
-    return await channel.actions.clearTopicItem(channelId, topicId);
-  }
-  const getTopic = async (cardId, channelId, topicId) => {
-    if (cardId) {
-      return await card.actions.getChannelTopic(cardId, channelId, topicId);
-    }
-    return await channel.actions.getTopic(channelId, topicId);
-  }
-  const getTopics = async (cardId, channelId, revision, begin, end) => {
-    if (cardId) {
-      return await card.actions.getChannelTopics(cardId, channelId, revision, 16, begin, end);
-    }
-    return await channel.actions.getTopics(channelId, revision, 16, begin, end)
-  }
-  const getTopicAssetUrl = (cardId, channelId, assetId) => {
-    if (cardId) {
-      return card.actions.getChannelTopicAssetUrl(cardId, channelId, topicId, assetId);
-    }
-    return channel.actions.getTopicAssetUrl(channelId, assetId);
-  }
-  const addTopic = async (cardId, channelId, message, asssets) => {
-    if (cardId) {
-      return await card.actions.addChannelTopic(cardId, channelId, message, assetId);
-    }
-    return await channel.actions.addTopic(channelId, message, assetId);
-  }
-  const setTopicSubject = async (cardId, channelId, topicId, dataType, data) => {
-    if (cardId) {
-      return await card.actions.setChannelTopicSubject(cardId, channelId, topicId, dataType, data);
-    }
-    return await channel.actions.setTopicSubject(channelId, topicId, dataType, data);
-  }
-  const remove = async (cardId, channelId) => {
-    if (cardId) {
-      return await card.actions.removeChannel(cardId, channelId);
-    }
-    return await channel.actions.remove(channelId);
-  }
-  const removeTopic = async (cardId, channelId, topicId) => {
-    if (cardId) {
-      return await card.actions.removeChannelTopic(cardId, channelId, topicId);
-    }
-    return await channel.actions.removeTopic(channelId, topicId);
-  }
-  const setNotifications = async (cardId, channelId, notify) => {
-    if (cardId) {
-      return await card.actions.setChannelNotifications(cardId, channelId, notify);
-    }
-    return await channel.actions.setNotifications(channelId, notify);
-  }
-  const getNotifications = async (cardId, channelId) => {
-    if (cardId) {
-      return await card.actions.getChannelNotifications(cardId, channelId);
-    }
-    return await channel.actions.getNotifications(channelId);
-  }
-  const setSyncRevision = async (cardId, channelId, revision) => {
-    if (cardId) {
-      return await card.actions.setSyncRevision(cardId, channelId, revision);
-    }
-    return await channel.actions.setSyncRevision(channelId, revision);
-  }
-  const setTopicMarker = async (cardId, channelId, marker) => {
-    if (cardId) {
-      return await card.actions.setTopicMarker(cardId, channelId, marker);
-    }
-    return await channel.actions.setTopicMarker(channelId, marker);
-  } 
-
-  useEffect(() => {
-    if (conversationId.current) {
-      const { cardId, channelId } = conversationId.current;
-      const channelItem = getChannel(cardId, channelId);
-      if (channelItem) {
-        setChannel(channelItem);
-      }
-    }
-  }, [card, channel]);
-
   const sync = async () => {
-    const curView = setView.current;
-    if (!syncing.current) {
+    if (!syncing.current && (reset.current || update.current || force.current || more.current)) {
+
+      const loadMore = more.current;
+      const ignoreRevision = force.current;
+      const conversation = converstaionId.current;
+      let curRevision, setRevision, marker;
+
+      syncing.current = true;
+      update.current = false;
+      force.current = false;
+      loadMore.current = false;
+
       if (reset.current) {
-        revision.current = null;
-        detailRevision.current = null;
-        topics.current = null;
         reset.current = false;
+        loaded.current = false;
+        topics.current = new Map();
+        updateState({ offsync: false, channel: null, card: null, topics: topics.current });
       }
-      if (conversationId.current) {
-        const { cardId, channelId } = conversationId.current;
-        const channelItem = getChannel(cardId, channelId);
 
-        if (channelItem && (channelItem.revision !== revision.current || force.current || more.current)) {
-          syncing.current = true;
+      if (conversation) {
+        const { cardId, channelId } = conversation;
 
-          try {
-
-            // sync from server
-            let res;
-            if (!topics.current) {
-              topics.current = new Map();
-              const items = await getTopicItems(cardId, channelId);
-              items.forEach(item => {
-                topics.current.set(item.topicId, item);
-              });
-              await setChannel(channelItem);
-              detailRevision.current = channelItem.detailRevision;
-            }
-            else if (detailRevision.current != channelItem.detailRevision) {
-              await setChannel(channelItem);
-              detailRevision.current = channelItem.detailRevision;
-            }
-            else if (more.current) {
-              more.current = false;
-              res = await getTopics(cardId, channelId, null, null, channelItem.topicMarker)
-            }
-            else if (channelItem.topicRevision !== channelItem.syncRevision || force.current) {
-              force.current = false;
-              res = await getTopics(cardId, channelId, channelItem.syncRevision, channelItem.topicMarker)
-            }
-            else {
-              if (cardId) {
-                card.actions.setChannelReadRevision(cardId, channelId, revision.current);
-              }
-              else {
-                channel.actions.setReadRevision(channelId, channelItem.revision);
-              }
-              revision.current = channelItem.revision;
-            }
-
-            if (res?.topics) {
-              for (const topic of res.topics) {
-                if (!topic.data) {
-                  topics.current.delete(topic.id);
-                  await clearTopicItem(cardId, channelId, topic.id);
-                }
-                else {
-                  const cached = topics.current.get(topic.id);
-                  if (!cached || cached.detailRevision != topic.data.detailRevision) {
-                    if (!topic.data.topicDetail) {
-                      const updated = await getTopic(cardId, channelId, topic.id);
-                      topic.data = updated.data;
-                    }
-                    if (!topic.data) {
-                      topics.current.delete(topic.id);
-                      await clearTopicItem(cardId, channelId, topic.id);
-                    }
-                    else {
-                      await setTopicItem(cardId, channelId, topic);
-                      const { id, revision, data } = topic;
-                      topics.current.set(id, { topicId: id, revision: revision, detailRevision: topic.data.detailRevision, detail: topic.data.topicDetail }); 
-                    }
-                  }
-                }
-              }
-            }
-
-            if (res?.marker) {
-              await setTopicMarker(cardId, channelId, res.marker);
-            }
-            if (res?.revision) {
-              await setSyncRevision(cardId, channelId, res.revision);
-            }
-
-            if (curView == setView.current) {
-              updateState({ topics: topics.current, init: true, error: false });
-            }
-
-            syncing.current = false;
-            sync();
+        if (loaded.current) {
+          const cardValue = cardId ? card.state.cards.get(cardId) : null;
+          const channelValue = cardId ? cardValue?.get(channelId) : channel.state.channels.get(channelId);
+          if (channelValue) {
+            const { topicRevision, syncRevision, topicMarker } = channelValue;
+            curRevision = topicRevision;
+            setRevision = syncRevision;
+            marker = topicMarker;
+            updateState({ card: cardValue, channel: channelValue });
           }
-          catch(err) {
-            console.log(err);
-            syncing.current = false;
-            updateState({ error: true });
+          else {
+            console.log("failed to load conversation");
+            sysncing.current = false;
+            return;
           }
         }
-      }
-    }
-  }
 
-  const getCard = (guid) => {
-    let contact = null
-    card.state.cards.forEach((card, cardId, map) => {
-      if (card?.profile?.guid === guid) {
-        contact = card;
-      }
-    });
-    return contact;
-  }
-
-  const getChannel = (cardId, channelId) => {
-    if (cardId) {
-      const entry = card.state.cards.get(cardId);
-      return entry?.channels.get(channelId);
-    }
-    return channel.state.channels.get(channelId);
-  }
-
-  const setChannel = async (item) => {
-    let contacts = [];
-    let logo = null;
-    let topic = null;
-    let subject = null;
-    let locked = false;
-    let unlocked = false;
-    let seals = null;
-
-    let timestamp;
-    const date = new Date(item.detail.created * 1000);
-    const now = new Date();
-    const offset = now.getTime() - date.getTime();
-    if(offset < 86400000) {
-      timestamp = moment(date).format('h:mma');
-    }
-    else if (offset < 31449600000) {
-      timestamp = moment(date).format('M/DD');
-    }
-    else {
-      timestamp = moment(date).format('M/DD/YYYY');
-    }
-
-    if (!item) {
-      updateState({ contacts, logo, subject, topic });
-      return;
-    }
-
-    if (item.cardId) {
-      contacts.push(card.state.cards.get(item.cardId));
-    }
-    if (item?.detail?.members) {
-      const profileGuid = profile.state.identity.guid;
-      item.detail.members.forEach(guid => {
-        if (profileGuid !== guid) {
-          const contact = getCard(guid);
-          contacts.push(contact);
+        if (!loaded.current) {
+          const cardValue = cardId ? card.state.cards.get(cardId) : null;
+          const channelValue = cardId ? cardValue?.get(channelId) : channel.state.channels.get(channelId);
+          if (channelValue) {
+            const { topicRevision, syncRevision, topicMarker } = channelValue;
+            curRevision = topicRevision;
+            setRevision = syncRevision;
+            marker = topicMarker;
+            const topicItems = await getTopicItems(cardId, channelId);
+            for (let topic: topicItems) {
+              topics.current.set(topic.topicId, topic);
+            }
+            updateState({ card: cardValue, channel: channelValue, topics: topics.current });
+            loaded.current = true;
+          }
+          else {
+            console.log("failed to load conversation");
+            syncing.current = false;
+            return;
+          }
         }
-      })
-    }
 
-    if (contacts.length === 0) {
-      logo = 'solution';
-    }
-    else if (contacts.length === 1) {
-      if (contacts[0]?.profile?.imageSet) {
-        logo = card.actions.getCardLogo(contacts[0].cardId, contacts[0].profileRevision);
-      }
-      else {
-        logo = 'avatar';
-      }
-    }
-    else {
-      logo = 'appstore';
-    }
-
-    if (item?.detail?.dataType === 'sealed') {
-      locked = true;
-      unlocked = item.unsealedDetail != null;
-      if (item.unsealedDetail?.subject) {
-        topic = item.unsealedDetail.subject;
-        subject = topic;
-      }
-      try {
-        seals = JSON.parse(item.detail.data).seals;
-      }
-      catch (err) {
-        console.log(err);
-      }
-    }
-    else {
-      if (item?.detail?.data) {
         try {
-          topic = JSON.parse(item?.detail?.data).subject;
-          subject = topic;
+          if (!marker) {
+            const delta = await getTopicDelta(cardId, channelId, null, COUNT, null, null);
+            await setTopicDelta(cardId, channelId, delta.topics);
+            setMarkerAndSync(cardId, channelId, topicMarker, topicRevision);
+          }
+          if (loadMore && marker) {
+            const delta = await getTopicDelta(cardId, channelId, null, COUNT, null, marker);
+            await setTopicDelta(cardId, channelId, delta.topics);
+            setTopicMarker(cardId, channelId, delta.topicMarker);
+          }
+          if (ignoreRevision || curTopicRevision.current !== setTopicRevision.current) {
+            const delta = await getTopicDelta(cardId, channelId, setRevision, null, marker, null);
+            await setTopicDelta(cardId, channelId, delta.topics);
+            setSyncRevision(cardid, channelId, delta.topicRevision);
+          }
         }
-        catch (err) {
+        catch(err) {
           console.log(err);
+          updateState({ offysnc: true });
+          syncing.current = false;
+          return
         }
+
+        syncing.current = false;
+        await sync();
       }
     }
-    if (!subject) {
-      if (contacts.length) {
-        let names = [];
-        for (let contact of contacts) {
-          if (contact?.profile?.name) {
-            names.push(contact.profile.name);
-          }
-          else if (contact?.profile?.handle) {
-            names.push(contact?.profile?.handle);
-          }
+  }
+
+  const setTopicDelta(cardId, channelId, entries) => {
+    for (let entry of entries) {
+      if (entry.data) {
+        if (entry.data.detail) {
+          const item = mapTopicEntry(entry);
+          topics.current.set(item.topicId, item);
+        }
+        else {
+          const topic = await getTopic(cardId, channelId, entry.id);
+          const item = mapTopicEntry(entry);
+          topics.current.set(item.topicId, item);
         }
-        subject = names.join(', ');
       }
       else {
-        subject = "Notes";
+        clearTopicItem(entry.id);
       }
     }
-
-    const pushEnabled = await getNotifications(item.cardId, item.channelId);
-
-    const { enableImage, enableAudio, enableVideo } = item.detail;
-    updateState({ topic, subject, logo, contacts, host: item.cardId, created: timestamp,
-      enableImage, enableAudio, enableVideo, pushEnabled, locked, unlocked, seals });
+    updateState({ offsync: false, topics: topics.current });
   }
 
   useEffect(() => {
+    update.current = true;
     sync();
-  }, [card, channel]);
+    // eslint-disable-next-line
+  }, [card.state, channel.state]);
 
   const actions = {
-    setChannel: (selected) => {
-      if (selected == null) {
-        setView.current++;
-        conversationId.current = null;
-        reset.current = true;
-        updateState({ subject: null, logo: null, locked: true, unlocked: false, contacts: [], topics: new Map() });
+    setConversation: async (cardId, channelId) => {
+      conversationId.current = { cardId, channelId };
+      reset.current = true;
+      await sync();
+    },
+    clearConversation: async ()
+      conversationId.current = null;
+      reset.current = true;
+      await sync();
+    },
+    setChannelSubject: async (type, subject) => {
+      const { cardId, channelId } = conversationId.current || {};
+      if (cardId) {
+        throw new Error("can only set hosted channel subjects");
       }
-      else if (selected.cardId !== conversationId.current?.cardId || selected.channelId !== conversationId.current?.channelId) {
-        setView.current++;
-        conversationId.current = selected;
-        reset.current = true;
-        updateState({ subject: null, logo: null, contacts: [], topics: new Map(), init: false,
-            cardId: selected.cardId, channelId: selected.channelId });
-        sync();
-        const { cardId, channelId, revision } = selected;
-        if (cardId) {
-          card.actions.setChannelReadRevision(cardId, channelId, revision);
-        }
-        else {
-          channel.actions.setReadRevision(channelId, revision);
-        }
+      else if(channelId) {
+        await channel.actions.setSubject(channelId, type, subject);
       }
     },
-    getTopicAssetUrl: (topicId, assetId) => {
-      if (conversationId.current) {
-        const { cardId, channelId } = conversationId.current;
-        if (cardId) {
-          return card.actions.getChannelTopicAssetUrl(cardId, channelId, topicId, assetId);
-        }
-        else {
-          return channel.actions.getTopicAssetUrl(channelId, topicId, assetId);
-        }
+    removeChannel: async () => {
+      const { cardId, channelId } = conversationId.current || {};
+      if (cardId) {
+        await card.actions.removeChannel(cardId, channelId); 
       }
-      return null;
-    },
-    addTopic: async (message, files) => {
-      if (conversationId.current) {
-        const { cardId, channelId } = conversationId.current;
-        if (cardId) {
-          await card.actions.addChannelTopic(cardId, channelId, message, files);
-        }
-        else {
-          await channel.actions.addTopic(channelId, message, files);
-        }
-        force.current = true;
-        sync();
+      else if (channelId) {
+        await channel.actions.removeChannel(channelId);
       }
     },
-    addSealedTopic: async (message, sealKey) => {
-      if (conversationId.current) {
-        const { cardId, channelId } = conversationId.current;
-        if (cardId) {
-          await card.actions.addSealedChannelTopic(cardId, channelId,  message, sealKey);
-        }
-        else {
-          await channel.actions.addSealedTopic(channelId, message, sealKey);
-        }
-        force.current = true;
-        sync();
+    getNotifications: async () => {
+      const { cardId, channelId } = conversationId.current || {};
+      if (cardId) {
+        await card.actions.getChannelNotifications(cardId, channelId);
       }
-    },
-    unsealTopic: async (topicId, sealKey) => {
-      try {
-        const topic = topics.current.get(topicId);
-        const { messageEncrypted, messageIv } = JSON.parse(topic.detail.data);
-        const iv = CryptoJS.enc.Hex.parse(messageIv);
-        const key = CryptoJS.enc.Hex.parse(sealKey);
-        const enc = CryptoJS.enc.Base64.parse(messageEncrypted);
-        let cipher = CryptoJS.lib.CipherParams.create({ ciphertext: enc, iv: iv });
-        const dec = CryptoJS.AES.decrypt(cipher, key, { iv: iv });
-        topic.unsealedDetail = JSON.parse(dec.toString(CryptoJS.enc.Utf8));
-        topics.current.set(topicId, { ...topic });
-        updateState({ topics: topics.current });
-    
-        const { cardId, channelId } = conversationId.current;
-        if (cardId) {
-          await card.actions.setChannelTopicUnsealedDetail(cardId, channelId, topic.topicId, topic.detailRevision, topic.unsealedDetail);
-        }
-        else {
-          await channel.actions.setTopicUnsealedDetail(channelId, topic.topicId, topic.detailRevision, topic.unsealedDetail);
-        }
-      }
-      catch(err) {
-        console.log(err);
-      }
-    },
-    setSubject: async (subject) => {
-      if (conversationId.current) {
-        const { cardId, channelId } = conversationId.current;
-        if (cardId) {
-          throw new Error("can only set hosted channel subjects");
-        }
-        await channel.actions.setSubject(channelId, subject);
-      }
-    },
-    setSealedSubject: async (subject, sealKey) => {
-      if (conversationId.current) {
-        const { cardId, channelId } = conversationId.current;
-        if (cardId) {
-          throw new Error("can only set hosted channel subjects");
-        }
-        await channel.actions.setSealedSubject(channelId, subject, sealKey);
-      }
-    },
-    remove: async () => {
-      if (conversationId.current) {
-        const { cardId, channelId } = conversationId.current;
-        await remove(cardId, channelId);
+      else if (channelId) {
+        await channel.actions.getNotifications(channelId);
       }
     },
     setNotifications: async (notify) => {
-      if (conversationId.current) {
-        const { cardId, channelId } = conversationId.current;
-        await setNotifications(cardId, channelId, notify);
-        updateState({ pushEnabled: notify });
+      const { cardId, channelId } = conversationId.current || {};
+      if (cardId) {
+        await card.actions.setChannelNotifications(cardId, channelId);
       }
+      else if (channelId) {
+        await channel.actions.setNotifications(channelId, notify);
+      }
+    },
+    setChannelCard: async (id) => {
+      const { cardId, channelId } = conversationId.current || {};
+      if (cardId) {
+        throw new Error("can only set members on hosted channel");
+      }
+      else if (channelId) {
+        await channel.actions.setChannelCard(channelId, id);
+      }
+    },
+    clearChannelCard: async (id) => {
+      const { cardId, channelId } = conversationId.current || {};
+      if (cardId) {
+        throw new Error("can only clear members on hosted channel");
+      }
+      else if (channelId) {
+        await channel.actions.clearChannelCard(channelId, id);
+      }
+    },
+    addChannelAlert: async () => {
+      const { cardId, channelId } = conversationId.current || {};
+        if (cardId) {
+          return await card.actions.addChannelAlert(cardId, channelId);
+        }
+        else if (channelId) {
+          return await channel.actions.addChannelAlert(channelId);
+        }
+      }
+    },
+    setChannelFlag: async () => {
+      const { cardId, channelId } = conversationId.current || {};
+      if (cardId) {
+        await card.actions.setChannelFlag(cardId, channelId);
+      }
+      else if (channelId) {
+        await channel.actions.setChannelFlag(channelId);
+      }
+    },
+    clearChannelFlag: async () => {
+      const { cardId, channelId } = conversationId.current || {};
+      if (cardid) {
+        await card.actions.clearChannelFlag(cardId, channelId);
+      }
+      else if (channelId) {
+        await channel.actions.clearChannelFlag(channelId);
+      }
+    },
+    addTopic: async (type, message, files) => {
+      const { cardId, channelId } = conversationId.current || {};
+      if (cardId) {
+        await card.actions.addTopic(cardId, channelId, type, message, files);
+      }
+      else if (channelId) {
+        await channel.actions.addTopic(channelId, type, message, files);
+      }
+      force.current = true;
+      await sync();
     },
     removeTopic: async (topicId) => {
-      if (conversationId.current) {
-        const { cardId, channelId } = conversationId.current;
-        if (cardId) {
-          await card.actions.removeChannelTopic(cardId, channelId, topicId);
-        }
-        else {
-          await channel.actions.removeTopic(channelId, topicId);
-        }
-        force.current = true;
-        sync();
+      const { cardId, channelId } = conversationId.current || {};
+      if (cardId) {
+        await card.actions.removeTopic(cardId, channelId, topicId);
+      }
+      else {
+        await channel.actions.removeTopic(channelId, topicId);
+      }
+      force.current = true;
+      await sync();
+    },
+    unsealTopic: async (topicId, revision, unsealed) => {
+      const { cardId, channelId } = conversationId.current || {}
+      if (cardId) {
+        await card.actions.setUnsealedTopicSubject(cardId, channelId, topicId, revision, unsealed);
+      }
+      else {channelId) {
+        await channel.actions.setUnsealedTopicSubject(channelId, topicId, revision, unsealed);
+      }
+      setTopicField(topicId, 'unsaledDetail', unsealed);
+    },
+    setTopicSubject: async (topicId, type, subject) => {
+      const { cardId, channelId } = conversationId.current || {};
+      if (cardId) {
+        await card.actions.setTopicSubject(cardId, channelId, topicId, type, subject);
+      }
+      else if (channelId) {
+        await channel.actions.setTopicSubject(channelId, topicId, type, subject);
+      }
+      force.current = true;
+      await sync();
+    },
+    addTopicAlert: async (topicId) => {
+      const { cardId, channelId } = conversationId.current || {};
+      if (cardId) {
+        return await card.actions.addTopicAlert(cardId, channelId, topicId);
+      }
+      else if (channelId) {
+        return await channel.actions.addTopicAlert(channelId, topicId);
       }
     },
-    setTopicSubject: async (topicId, data) => {
-      if (conversationId.current) {
-        const { cardId, channelId } = conversationId.current;
-        if (cardId) {
-          return await card.actions.setChannelTopicSubject(cardId, channelId, topicId, 'superbasictopic', data);
-        }
-        else {
-          return await channel.actions.setTopicSubject(channelId, topicId, 'superbasictopic', data);
-        }
+    setTopicFlag: async (topicId) => {
+      const { cardId, channelId } = conversationId.current || {};
+      if (cardId) {
+        card.actions.setTopicFlag(cardId, channelId, topicId);
       }
+      else if (channelId) {
+        channel.actions.setTopicFlag(channelId, topicId);
+      }
+      setTopicField(topicId, 'blocked', true);
+    },
+    clearTopicFlag: async (topicId) => {
+      const { cardId, channelId } = conversationId.current || {};
+      if (cardId) {
+        card.actions.clearTopicFlag(cardId, channelId, topicId);
+      }
+      else if (channelId) {
+        channel.actions.clearTopicFlag(channelId, topicId);
+      }
+      setTopicField(topicId, 'blocked', false);
+    },
+    getTopicAssetUrl: (topicId, assetId) => {
+      const { cardId, channelId } = conversationId.current || {};
+      return getTopicAssetUrl(cardId, channelId, topicId, assetId);
+    },
+    loadMore: () => {
+      more.current = true;
+      sync();
+    },
+    resync: () => {
       force.current = true;
       sync();
     },
-    setSealedTopicSubject: async (topicId, data, sealKey) => {
-      if (conversationId.current) {
-        const { cardId, channelId } = conversationId.current;
-
-        const iv = CryptoJS.lib.WordArray.random(128 / 8);
-        const key = CryptoJS.enc.Hex.parse(sealKey);
-        const encrypted = CryptoJS.AES.encrypt(JSON.stringify({ message: data }), key, { iv: iv });
-        const messageEncrypted = encrypted.ciphertext.toString(CryptoJS.enc.Base64)
-        const messageIv = iv.toString();
-
-        if (cardId) {
-          return await card.actions.setChannelTopicSubject(cardId, channelId, topicId, 'sealedtopic', { messageEncrypted, messageIv });
-        }
-        else {
-          return await channel.actions.setTopicSubject(channelId, topicId, 'sealedtopic', { messageEncrypted, messageIv });
-        }
- 
-      }
-    },
-    setCard: async (id) => {
-      if (conversationId.current) {
-        const { cardId, channelId } = conversationId.current;
-        if (cardId) {
-          throw new Error("can only set members on hosted channel");
-        }
-        await channel.actions.setCard(channelId, id);
-      }
-    },
-    clearCard: async (id) => {
-      if (conversationId.current) {
-        const { cardId, channelId } = conversationId.current;
-        if (cardId) {
-          throw new Error("can only clear members on hosted channel");
-        }
-        await channel.actions.clearCard(channelId, id);
-      }
-    },
-    addReport: async () => {
-      if (conversationId.current) {
-        const { cardId, channelId } = conversationId.current;
-        if (cardId) {
-          return await card.actions.addChannelReport(cardId, channelId);
-        }
-        else {
-          return await channel.actions.addReport(channelId);
-        }
-      }
-    },
-    addTopicReport: async(topicId) => {
-      if (conversationId.current) {
-        const { cardId, channelId } = conversationId.current;
-        if (cardId) {
-          return await card.actions.addChannelTopicReport(cardId, channelId, topicId);
-        }
-        else {
-          return await channel.actions.addTopicReport(channelId, topicId);
-        }
-      }
-    },
-    setBlocked: async () => {
-      if (conversationId.current) {
-        const { cardId, channelId } = conversationId.current;
-        if (cardId) {
-          await card.actions.setChannelBlocked(cardId, channelId);
-        }
-        else {
-          await channel.actions.setBlocked(channelId);
-        }
-      }
-    },
-    blockTopic: async (topicId) => {
-      if (conversationId.current) {
-        const { cardId, channelId } = conversationId.current;
-        if (cardId) {
-          await card.actions.setChannelTopicBlocked(cardId, channelId, topicId);
-        }
-        else {
-          await channel.actions.setTopicBlocked(channelId, topicId);
-        }
-        const topic = topics.current.get(topicId);
-        if (topic) {
-          topic.blocked = 1;
-          force.current = true;
-          sync();
-        }
-      }
-    },
-    unblockTopic: async (cardId, channelId, topicId) => {
-      if (conversationId.current) {
-        if (conversationId.current.cardId == cardId && conversationId.current.channelId == channelId) {
-          const topic = topics.current.get(topicId);
-          if (topic) {
-            topic.blocked = 0;
-            force.current = true;
-            sync();
-          }
-        }
-      }
-    },
-    loadMore: () => {
-      if (conversationId.current) {
-        more.current = true;
-        sync();
-      }
-    },
-    resync: () => {
-      if (conversationId.current) {
-        force.current = true;
-        sync();
-      }
-    },
   }
 
+  const getTopicItems = async (cardId, channelId) => {
+    if (cardId) {
+      return await card.actions.getTopicItems(cardId, channelId);
+    }
+    return await channel.actions.getTopicItems(channelId);
+  }
+
+  const setTopicItem = async (cardId, channelId, topic) => {
+    if (cardId) {
+      return await card.actions.setTopicItem(cardId, channelId, topic);
+    }
+    return await channel.actions.setTopicItem(channelId, topic);
+  }
+
+  const clearTopicItem = async (cardId, channelId, topicId) => {
+    if (cardId) {
+      return await card.actions.clearTopicItem(cardId, channelId, topicId);
+    }
+    return await channel.actions.clearTopicItem(channelId, topicId);
+  }
+
+  const setTopicMarker = async (cardId, channelId, marker) => {
+    if (cardId) {
+      return await card.actions.setChannelTopicMarker(cardId, channelId, marker);
+    }
+    return await channel.actions.setTopicMarker(channelId, marker);
+  }
+
+  const setSyncRevision = async (cardId, channelId, revision) => {
+    if (cardId) {
+      return await card.actions.setChannelSyncRevision(cardId, channelId, revision);
+    }
+    return await channel.actions.setSyncRevision(channelid, revision);
+  }
+
+  const setMarkerAndSync = async (cardId, channelId, marker, revision) => {
+    if (cardId) {
+      return await card.actions.setChannelMarkerAndSync(cardId, channelId, marker, revision);
+    }
+    return await channel.actions.setMarkerAndSync(channelId, marker, revision);
+  }
+
+  const getTopicDelta = async (cardId, channelId, revision, count, begin, end) => {
+    if (cardId) {
+      return await card.actions.getTopics(cardId, channelId, revision, count, begin, end);
+    }
+    return await channel.actions.getTopics(channelId, revision, count, begin, end);
+  }
+
+  const getTopic = async (cardId, channelId, topicId) => {
+    if (cardId) {
+      return await card.actions.getTopic(cardId, channelId, topicId);
+    }
+    return await channel.actions.getTopic(channelId, topicId);
+  }
+
+  const mapTopicItem = (entry) => {
+    return {
+      topicId: entry.id,
+      revision: entry.revision,
+      detailRevision = entry.data?.detailRevision,
+      detail = entry.data?.topicDetail,
+    };
+  };
+
+  const setTopicField = (topicId, field, value) => {
+    const topic = topics.current.get(topicId);
+    if (topic) {
+      topic[field] = value;
+    }
+    topics.current.set(topicId, topic);
+    updateState({ topics: topics.current });
+  };
+
   return { state, actions }
 }
 
-
diff --git a/app/mobile/src/context/useStoreContext.hook.js b/app/mobile/src/context/useStoreContext.hook.js
index ff1b8698..040a0ab6 100644
--- a/app/mobile/src/context/useStoreContext.hook.js
+++ b/app/mobile/src/context/useStoreContext.hook.js
@@ -159,17 +159,6 @@ export function useStoreContext() {
         blocked: values[0].blocked,
       };
     },
-    getCardItemView: async (guid, cardId) => {
-      const values = await getAppValues(db.current, `SELECT revision, detail_revision, profile_revision FROM card_${guid} WHERE card_id=?`, [cardId]);
-      if (!values.length) {
-        return null;
-      }
-      return {
-        revision: values[0].revision,
-        detailRevision: values[0].detail_revision,
-        profileRevision: values[0].profile_revision,
-      };
-    },
     getCardItems: async (guid) => {
       const values = await getAppValues(db.current, `SELECT card_id, revision, detail_revision, profile_revision, detail, profile, offsync, blocked, notified_view, notified_profile, notified_article, notified_channel FROM card_${guid}`, []);
       return values.map(card => ({
@@ -215,6 +204,9 @@ export function useStoreContext() {
     setChannelItemTopicMarker: async (guid, channelId, marker) => {
       await db.current.executeSql(`UPDATE channel_${guid} set topic_marker=? where channel_id=?`, [marker, channelId]);
     },
+    setChannelItemMarkerAndSync: async (guid, channelId, marker, revision) => {
+      await db.current.executeSql(`UPDATE channel_${guid} set sync_revision=?, topic_marker=? where channel_id=?`, [revision, maker, channelId]);
+    },
     setChannelItemBlocked: async (guid, channelId) => {
       await db.current.executeSql(`UPDATE channel_${guid} set blocked=? where channel_id=?`, [1, channelId]);
     },
@@ -233,17 +225,6 @@ export function useStoreContext() {
     setChannelItemUnsealedSummary: async (guid, channelId, revision, unsealed) => {
       await db.current.executeSql(`UPDATE channel_${guid} set unsealed_summary=? where topic_revision=? AND channel_id=?`, [encodeObject(unsealed), revision, channelId]);
     },
-    getChannelItemView: async (guid, channelId) => {
-      const values = await getAppValues(db.current, `SELECT revision, detail_revision, topic_revision FROM channel_${guid} WHERE channel_id=?`, [channelId]);
-      if (!values.length) {
-        return null;
-      }
-      return {
-        revision: values[0].revision,
-        detailRevision: values[0].detail_revision,
-        topicRevision: values[0].topic_revision,
-      };
-    },
     getChannelItems: async (guid) => {
       const values = await getAppValues(db.current, `SELECT channel_id, read_revision, revision, sync_revision, blocked, detail_revision, topic_revision, topic_marker, detail, unsealed_detail, summary, unsealed_summary FROM channel_${guid}`, []);
       return values.map(channel => ({
@@ -318,6 +299,9 @@ export function useStoreContext() {
     setCardChannelItemTopicMarker: async (guid, cardId, channelId, marker) => {
       await db.current.executeSql(`UPDATE card_channel_${guid} set topic_marker=? where card_id=? and channel_id=?`, [marker, cardId, channelId]);
     },
+    setCardChannelItemMakerAndSync: async (guid, cardId, channelId, marker, revision) => {
+      await db.current.executeSql(`UPDATE card_channel_${guid} set topic_marker=?, sync_revision=? where card_id=? and channel_id=?`, [marker, revision, cardId, channelId]);
+    },
     setCardChannelItemDetail: async (guid, cardId, channelId, revision, detail) => {
       await db.current.executeSql(`UPDATE card_channel_${guid} set detail_revision=?, detail=?, unsealed_detail=null where card_id=? and channel_id=?`, [revision, encodeObject(detail), cardId, channelId]);
     },
@@ -330,17 +314,6 @@ export function useStoreContext() {
     setCardChannelItemUnsealedSummary: async (guid, cardId, channelId, revision, unsealed) => {
       await db.current.executeSql(`UPDATE card_channel_${guid} set unsealed_summary=? where topic_revision=? AND card_id=? AND channel_id=?`, [encodeObject(unsealed), revision, cardId, channelId]);
     },
-    getCardChannelItemView: async (guid, cardId, channelId) => {
-      const values = await getAppValues(db.current, `SELECT revision, detail_revision, topic_revision FROM card_channel_${guid} WHERE card_id=? and channel_id=?`, [cardId, channelId]);
-      if (!values.length) {
-        return null;
-      }
-      return {
-        revision: values[0].revision,
-        detailRevision: values[0].detail_revision,
-        topicRevision: values[0].topic_revision,
-      };
-    },
     getCardChannelItems: async (guid) => {
       const values = await getAppValues(db.current, `SELECT card_id, channel_id, read_revision, sync_revision, revision, blocked, detail_revision, topic_revision, topic_marker, detail, unsealed_detail, summary, unsealed_summary FROM card_channel_${guid}`, []);
       return values.map(channel => ({