How to make Android notifications actually reliable
Doze mode, manufacturer power managers, and the three settings that fix most missed reminders.
If your reminder app goes quiet after a day or two, the app is usually not at fault. Android suspends background work aggressively, and several manufacturers add their own layer on top.
1. Battery optimisation
Settings, Apps, your app, Battery, then set it to Unrestricted. This is the single highest-impact change and it fixes the majority of missed alarms.
2. Autostart
Some Android skins prevent apps from scheduling anything after a reboot unless autostart is explicitly allowed. If your phone has an autostart list, add the app.
3. Do Not Disturb exceptions
A notification can fire correctly and still be silent. Add time-critical apps to your DND exception list.
Why developers cannot fix this for you
Scheduling exact alarms requires a permission the system grants sparingly, and power-management behaviour varies by manufacturer. The best an app can do is reschedule on launch and explain these settings clearly.
If you use Salah Companion, the notification guide walks through each step with screenshots.