Check notification permission first
Make sure notifications are enabled for Rahma in system settings. Focus mode, Do Not Disturb and silent notification categories can prevent an alert from appearing or making sound.
Battery saving may stop the app
Some Android devices close background apps aggressively. Excluding Rahma from battery optimization and allowing automatic startup can make scheduled alerts more reliable.
Refresh time and location
Enable automatic time zone, refresh your location and check the reminder switch for each prayer. If the issue continues, restarting the device may refresh its scheduling services.