Audio Crank Clamp Lite

Lock the minimum and maximum audio volumes on your device. You can lock each type of audio volume separately. It helps prevent accidental or unwanted volume changes. The full version can run on start up (optional), has a password option, has a home screen widget, and has a dark/light/black/amber theme option.

Full Version Link

https://play.google.com/store/apps/details?id=com.grantojanen.audioCrankClamp

More Details

Offline: Yes

Lightweight: less than 1MB

Multi-Window Support: Yes

Descriptor: audio volume locker

Permissions Info

Foreground Services: This is needed to run the volume lock service on Android 9+.

modify Do Not Disturb settings: This is needed to set a minimum volume lock on the ringer, notifications, and alarms on Android 6+.