Cube Planet by NaraENC FREE

Cube Planet comes from NaraENC.  The object is to rotate the cubes and spot the differences, while also collecting gold coins.

 The game starts with 2x2 cubes and quickly graduates to 3x3s.

 The graphics are fantastic.

But this is not exactly up my alley.  
https://itunes.apple.com/us/app/cube-planet/id1450108243?mt=8