One Touch Draw Puzzle Game: free puzzle app for iphone, ipad

One Touch Draw Puzzle Game is one of many topology puzzle app where the objective is to start at a point, and trace the given shape without crossing a line, without going over the same line twice and without lifting your finger.


I've done so many of these, I can do them while eating spaghetti.  I did all the 'Hard' levels in about 20 minutes. But that's because I learned the secret to these when I took a course in topology ages ago.  (I didn't look at the easy ones.)


What do I like about this? Great shapes and the lines are thick and colorful.
https://itunes.apple.com/fj/app/one-touch-draw-puzzle-game/id972637644?mt=8