App for what? What are you using that doesn’t already have a clock?

I like Clock You.

Depending on what you want, a clock app is something you can easily build yourself. Nothing more private than what is already yours.

Hi guys, thanks for yur help. With “Simple clock” and “clock you” the problem is that when I turn my screen off, the alarm doesnt work. I don’t understand cause I unabled all authorisation possible with these apps. How can I solve it ? My phone is a TCL with Android 11.

iOS: Clocks

Android: Simple Clock

Linux: GNOME Clocks

You could try this https://www.f-droid.org/en/packages/com.simplemobiletools.clock/