Apex Launcher is an app which is available on play store for android phone.Using this app we can customize homescreen grid size up and extend it upto 9 homescreen.
The app drawer can also be customize to different kinds of effects like tablet, cube, flip, etc.We can also customize different gestures like pinch, swipe, up or down, double tap, etc on homescreen for various apps.
To enable advance features in this app the phone must have root access.That can remove your phone from warranty and can cause some internal issue with your phone.
The usage of this launcher will make your phone hang, inspite use the system launcher which will always prevent your phone from getting damaged.*