diff --git a/lib/shared/farcaster/farcaster-hooks.js b/lib/shared/farcaster/farcaster-hooks.js
--- a/lib/shared/farcaster/farcaster-hooks.js
+++ b/lib/shared/farcaster/farcaster-hooks.js
@@ -1036,6 +1036,36 @@
   ]);
 }
 
+function useLightweightSyncOnAppStart() {
+  const isUserLoggedIn = useSelector(isLoggedIn);
+  const userDataReady = useIsUserDataReady();
+  const fullyLoggedIn = isUserLoggedIn && userDataReady;
+  const currentUserSupportsDCs = useCurrentUserSupportsDCs();
+  const farcasterDCsLoaded = useFarcasterDCsLoaded();
+  const lightweightSync = useLightweightFarcasterConversationsSync();
+  const started = React.useRef(false);
+
+  React.useEffect(() => {
+    // We're waiting for the state to be ready
+    if (started.current || !fullyLoggedIn || !currentUserSupportsDCs) {
+      return;
+    }
+    started.current = true;
+    // If we're here, it means that the full sync is not yet done. In that
+    // case, we don't want to perform the lightweight sync during this run
+    // of the app.
+    if (!farcasterDCsLoaded) {
+      return;
+    }
+    void lightweightSync();
+  }, [
+    currentUserSupportsDCs,
+    farcasterDCsLoaded,
+    fullyLoggedIn,
+    lightweightSync,
+  ]);
+}
+
 export {
   useFarcasterConversationsSync,
   useLightweightFarcasterConversationsSync,
@@ -1047,4 +1077,5 @@
   useAddNewFarcasterMessage,
   useFarcasterSync,
   useFarcasterThreadRefresher,
+  useLightweightSyncOnAppStart,
 };
diff --git a/native/components/farcaster-sync-handler.react.js b/native/components/farcaster-sync-handler.react.js
--- a/native/components/farcaster-sync-handler.react.js
+++ b/native/components/farcaster-sync-handler.react.js
@@ -5,6 +5,7 @@
 
 import { useIsUserDataReady } from 'lib/hooks/backup-hooks.js';
 import { isLoggedIn } from 'lib/selectors/user-selectors.js';
+import { useLightweightSyncOnAppStart } from 'lib/shared/farcaster/farcaster-hooks.js';
 import {
   useCurrentUserSupportsDCs,
   useFarcasterDCsLoaded,
@@ -26,6 +27,8 @@
   const farcasterDCsLoaded = useFarcasterDCsLoaded();
   const currentRouteName = useCurrentLeafRouteName();
 
+  useLightweightSyncOnAppStart();
+
   React.useEffect(() => {
     if (!navContext) {
       return;
diff --git a/web/components/farcaster-sync-overlay.react.js b/web/components/farcaster-sync-overlay.react.js
--- a/web/components/farcaster-sync-overlay.react.js
+++ b/web/components/farcaster-sync-overlay.react.js
@@ -2,6 +2,7 @@
 
 import * as React from 'react';
 
+import { useLightweightSyncOnAppStart } from 'lib/shared/farcaster/farcaster-hooks.js';
 import {
   useCurrentUserSupportsDCs,
   useFarcasterDCsLoaded,
@@ -21,6 +22,8 @@
   const isFullSyncInProgress =
     currentUserSupportsDCs && farcasterDCsLoaded === false;
 
+  useLightweightSyncOnAppStart();
+
   const style = React.useMemo(() => {
     if (!isFullSyncInProgress) {
       return {};