Trinagon Sample by lucas pradlwarter FREE

Trinagon Sample comes from Lucas Pradlwarter.  The object is to rotate sets of 6 triangles in order to rearrange the dark purple triangles to match a given pattern.

Tap once on a circle and the surrounding 6 triangles will rotate clockwise. Tap twice - anti clockwise.

This game reminds me of Mad Triad which was a failed mechanical puzzles because it broke too often. (I think I have a copy.)
https://itunes.apple.com/us/app/trinagon-sample/id1456473052?mt=8