Setup Instructions for Realme Devices
Please follow these important setup instructions so that your alarms ring and you can effectively use the Galarm App. You only need to do this once.
Step 1: Open recent apps, swipe the Galarm app icon down and tap on Lock. Make sure that you see the lock on Galarm app icon as shown in the second screenshot.
Step 2: Go to Settings > App Management > App List > Galarm. Tap on Battery usage. Make sure to enable both "Allow background activity" and "Allow auto launch"