I have a few apps that don't work the way they should when the screen is locked, most notably the gymboss interval timer: The app is supposed to beep every x seconds, but when the screen is locked the timer runs but there's no beep. I found no way in the settings to tell my phone to not lock the screen when the gymboss app is running. Is there another app that allows me to finetune the screen locking settings in such a way? I'm using a fairphone with the fairphone OS.

1. I have a fewapps that don't work the waytheyshould whenthe screenis locked, most notablythe gymboss intervaltimer:The app is supposed to
beep everyxseconds, but whenthe screenis locked the timer runs but there's no beep. I found no wayinthe settings to tellmyphone to not lock
the screenwhenthe gymboss app is running. Is there another app that allows me to finetune the screenlockingsettings insucha way?
I'musinga fairphone withthe fairphone OS.