This best root app is the heart of rooted android mobile, who want to customize their phone and move it to next level. Gravity Box is basically one of best root app which can work only when Xposed Installer is working.This app requires Xposed installer installed. It can make changes to you phone buttons, add navigation bar, change the notification bar, change lock screen, add wallpaper to lock screen and many more awesome things.
Download Links :
For Android 4.4 devices – Gravity Box KK
For Android 4.1-4.3 devices – Gravity Box JB
For Android 5.0 devices – Gravity Box LP
Also, check out: What is Cloud Computing
