A. 1. Regularly save your progress: If the app allows, manually save your settings or progress frequently to avoid losing work during crashes. 2. Restart the app: Close Brass completely by swiping up from the bottom of the screen (or double-clicking the home button) and swiping the app off the screen. Then reopen it and check if your progress is saved.

B. 3. Update the app: Go to the App Store, tap on your profile icon at the top right, scroll down to see if Brass has an update available. If so, tap 'Update' to install the latest version.