Great app but lots of little bugs. – TacticTrainer Review

I just got a problem correct and I went to analyze without the in app engine and when I made my first move in analysis took away rating points as if I got the problem incorrect. The app thought that I was still solving the problem when I had already solved it. The app also doesn't have the best rating system. Its very harsh. The in app engine needs tuning. But other than that this app is the best chess tactics trainer available. This app also needs to reward you more for getting problems right. I should NOT get +.2 points for getting a problem right while losing -8.9 points for getting one wrong. This app doesn't reward you at all. I get 9/10 problems right and my rating goes DOWN. They need to balance this!!!!!!!!!! PLEASE
Review by Zombitroid on TacticTrainer.