Not a "tutor" at all. – Igowin Tutor Review

This app has absolutely no features that will help you learn go. The computer beats you quickly, then there is no way to review the game to see where you went wrong. If you want to undo moves to try a different strategy, it only lets you undo one movie per game. It's almost as if it's designed specifically so you can't learn. Totally misnamed, downright frustrating and completely useless for beginners. This app prevents you from learning Go and progressing.
Review by ShoobyTaylor on Igowin Tutor.