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Device Settings / Battery / App Battery ManagementSelect Gentle Wakeup in the list and enable Allow all background activity Pin your app […]
No. You can even close the app and it will reappear on wakeup time.
Phone settings / Apps / Battery / Gentle Wakeup Background restrictions must not be applied Battery must be not optimized Phone settings / […]
The app turns your Android into a professional wake-up light. This requires many system permissions. For example it needs to control the […]