Hexazen by Fabrizio Filieri

  

Hexazen comes from  Fabrizio Filieri. It's an edge-matching puzzle. The object is to rotate each piece so that the dots line up with those of their neighbors and light up.

There is an endless number of levels to solve. I thought I would stop after 5 - 10 levels.  I think I've done 15.

This is one of those rare puzzles where I like that there is a timer. I've solved a few in under a minute.  The longest took me over 4 minutes.
https://itunes.apple.com/us/app/hexazen/id1207649399?mt=8