Always visible Home button

You can move the home button, back button, and recent apps button to the desired location.

When you press and hold the button, you can use various functions, such as adjusting the volume.

The left button on the notification bar is a function to turn the on-screen button on or off.

Accessibility API

Accessibility services are required when going back, home screen, or displaying recent apps. This service is also required when using the smartphone screen-off feature. No user data is used or collected.