Amazon Free App of the Day:

Zengrams is an abstract, minimalist puzzler available designed by Andreas Boye and brought to you by Gameblyr, the publisher of indie hits Pathogen and Third Eye Crime.

Zengrams was designed to exercise your brain through deceptively simple puzzles in which
players rearrange shapes into the correct design. Carefully manage your limited number of
moves as you cut, combine and position your way to success.