This app shows volume buttons on the edge of the screen.
You can change the color size and opacity of these volume buttons.
These on-screen volume buttons work same as volume keys of your phone.
So you can control the sound of the phone even if volume keys of your phone are not working.
Also these volume buttons can help increase life of volume keys of your phone.

This app also has some Advanced features:
- Brightness slider
- Darkness slider
- Slider customization
- Power Button (Android 9 and above)
- Turn screen on using Proximity sensor.
- Set volume and brightness per app.

Note:
- App requires permission to run service in background.
- Some phones kill the background service. Those users need to follow steps mentioned in the app.