This app solves the problem that your finger cannot reach the "Back button". [Features] - Press and hold the button to move. - "Home button", "Resents button" and "Notification bar" can also be displayed. - Order of buttons can be changed. - Multiple types of button shapes. - Button colors can be customized freely. - Very simple to use! From version 2.00, buttons can also be displayed on the "Navigation Bar". (Floating buttons on the "Navigation Bar") To use this app, you need to turn on "Activate" and make the following settings. - Turn on "Back button" service from "Settings -> Accessibility" - Turn on "Display over other apps" from "Settings -> Apps -> Back button" *This app uses Accessibility Services. Accessibility service is to use the functions of "Back button", "Home button", "Resents button" and "Notification bar", and it will not be used elsewhere.