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App description: Sort all the images by shade or color. Master the world of black and white. Move to a rainbow colored world. Easy to learn. Fun to master. Over 100 levels to complete! Or choose a randomly generated level.

Includes one In-App purchase to allow unlimited play (no waiting for energy to play the next level). Any purchase will also disable pop-up and banner ads.

Phantom42's comments:

Developer here. This is a very casual kind of game with very quick levels. If that's your kind of thing, give it a shot!

Here's a preview:
03-04-2016, 11:38 AM
Update submitted

I just submitted version 1.1 for review. Changes include:
Bug fixes (mostly a big memory leak).
Level 26 of the plain color images (the second stage) was redone ; with the old version, you couldn't get all three stars (the # moves star was impossible).
03-10-2016, 06:04 PM
Version 1.1 out now

Version 1.1 (which includes a fix for a broken level and some bug fixes) was just approved. Update if you have the old version, or give it a try if you like casual games.