A. 1. Force close the app: As mentioned above, double-click the Home button (or swipe up) and swipe up on WeatherBug to close it. Reopen the app to check if it still locks up the screen. 2. Check for software updates: Go to Settings > General > Software Update. If an update is available, install it. Sometimes, app issues are related to the iOS version.

B. 3. Free up device storage: Go to Settings > General > iPhone Storage. If your storage is nearly full, delete unnecessary apps or files to improve performance.