The navigation bar is a floating bar at the bottom of the screen
It has Back button, Home button, and last button

Features
- Hide the tape with the duration specified by the user.
- Swipe up / down easily to show / hide navigation bar.
- You can change the background color
- Reverse places buttons
- Hide the ribbon when you open the keyboard
- Hide the ribbon after you rotate the screen

Noticeable:
- The app needs permission to appear above other apps
- This app uses accessibility services.