A. If ads are causing the app to freeze, try force-closing the app. Double-tap the home button (or swipe up from the bottom on newer iPhones) to see all open apps, then swipe Zen Word off the screen to close it. Reopen the app to see if the issue persists.

B. Ensure your iPhone's software is up to date. Go to Settings > General > Software Update and install any available updates. Sometimes, app freezing issues can be resolved with the latest software improvements.