diff --git a/packages/app/e2e/mobile/agent-device/native-composer-fullscreen.ios.ad b/packages/app/e2e/mobile/agent-device/native-composer-fullscreen.ios.ad
new file mode 100644
index 0000000000..d991b227b7
--- /dev/null
+++ b/packages/app/e2e/mobile/agent-device/native-composer-fullscreen.ios.ad
@@ -0,0 +1,18 @@
+context platform=ios timeout=60000 retries=0
+# Start with an empty composer in an idle chat or new-agent draft on an iPhone with the software keyboard enabled.
+# Expand a long draft with the keyboard open; Exit fullscreen must remain reachable.
+open sh.paseo.debug
+wait "editable=true" 60000
+fill "editable=true" "iOS fullscreen composer smoke.\n\nLine 1: Check that the composer keeps this draft when expanded and collapsed.\nLine 2: Check that the composer keeps this draft when expanded and collapsed.\nLine 3: Check that the composer keeps this draft when expanded and collapsed.\nLine 4: Check that the composer keeps this draft when expanded and collapsed.\nLine 5: Check that the composer keeps this draft when expanded and collapsed.\nLine 6: Check that the composer keeps this draft when expanded and collapsed.\nLine 7: Check that the composer keeps this draft when expanded and collapsed.\nLine 8: Check that the composer keeps this draft when expanded and collapsed.\nLine 9: Check that the composer keeps this draft when expanded and collapsed.\nLine 10: Check that the composer keeps this draft when expanded and collapsed.\nLine 11: Check that the composer keeps this draft when expanded and collapsed.\nLine 12: Check that the composer keeps this draft when expanded and collapsed.\nLine 13: Check that the composer keeps this draft when expanded and collapsed.\nLine 14: Check that the composer keeps this draft when expanded and collapsed."
+press "label=\"Fullscreen\""
+wait "label=\"Exit fullscreen\" role=button" 5000
+is visible "label=\"Exit fullscreen\" role=button"
+press "label=\"Exit fullscreen\" role=button"
+wait "label=\"Fullscreen\" role=button" 5000
+is visible "label=\"Fullscreen\" role=button"
+press "label=\"Fullscreen\""
+wait "label=\"Exit fullscreen\" role=button" 5000
+is visible "label=\"Exit fullscreen\" role=button"
+press "label=\"Exit fullscreen\" role=button"
+wait "label=\"Fullscreen\" role=button" 5000
+is visible "label=\"Fullscreen\" role=button"
diff --git a/packages/app/src/keyboard/shift/internal/translate.ios.tsx b/packages/app/src/keyboard/shift/internal/translate.ios.tsx
index 348fe828d0..1fea4fab0c 100644
--- a/packages/app/src/keyboard/shift/internal/translate.ios.tsx
+++ b/packages/app/src/keyboard/shift/internal/translate.ios.tsx
@@ -1,5 +1,5 @@
-import { useMemo, type ReactNode } from "react";
-import { Animated, type ViewProps } from "react-native";
+import { useMemo, useEffect, type ReactNode } from "react";
+import { Animated, useAnimatedValue, type ViewProps } from "react-native";
 import { useKeyboardAnimation } from "react-native-keyboard-controller";
 import { useSafeAreaInsets } from "react-native-safe-area-context";
 
@@ -32,9 +32,23 @@ export function KeyboardTranslateView({
       }),
     [bottomClearance, height, insets.bottom, progress],
   );
+  // Fullscreen resizes this view while disabling translation. iOS Fabric can
+  // reapply its previous transform during that layout commit. Keep the graph
+  // attached and apply the mode on the native animation frame; a static zero or
+  // setValue during the React commit gets overwritten by the resize.
+  const enabledValue = useAnimatedValue(enabled ? 1 : 0);
+  useEffect(() => {
+    const animation = Animated.timing(enabledValue, {
+      toValue: enabled ? 1 : 0,
+      duration: 0,
+      useNativeDriver: true,
+    });
+    animation.start();
+    return () => animation.stop();
+  }, [enabled, enabledValue]);
   const keyboardStyle = useMemo(
-    () => ({ transform: [{ translateY: enabled ? translateY : 0 }] }),
-    [enabled, translateY],
+    () => ({ transform: [{ translateY: Animated.multiply(translateY, enabledValue) }] }),
+    [enabledValue, translateY],
   );
 
   return (