Sale has ended but you can still get this app.
Download Hexanundrum Live Wallpaper Now

Official Description

Ad free live wallpaper of a geometric conundrum moving around your phone's background.

Instructions for installation:
1. Tap and hold on blank spot on screen.
2. Tap on wallpaper
3. Tap on Dancing Cubes Live Wallpaper
4. Tap 'Set Wallpaper'

Enjoy!