Great game with poor usability

Id love to give this game five stars. It plays well. The interface is beautiful. The problem is the pretty interface makes it really hard to play on an iPhone 5s. The "play" buttons to start a game are hard to hit, and it frequently misplaces letters then wants me to spend an undo to put it where it was supposed to have put it in the first place.

The game is also marred for me by a bunch of inscrutable rules that dont add anything to the game for me and I dont see what its doing for the developers either. Whats up with having different games locked based on which previous days puzzles I have completed? Its not a level thing. Its not a progress thing. I just spin the stupid dial until I find one at the level I want to play and that happens to be unlocked.

A random engineer about QatQi