5 stars: A great way to practice chess problems. Even the free part is very useful. I love the hints and the fact that you can come back to the problems that you missed earlier and try them again.
5 stars: It has definitely helped explain tactics that have improved my game. My 2nd grader has improved too, with the progressively difficult challenges. Highly recommend.
5 stars: Excellent app for learning chess tactics. There are a lot of exercises and each exercise emphasis a tactic or a combination of tactics. Great for beginners!
5 stars: Very well done. Loads of thanks. Especially like it that wrong moves are explained. Thanks so much.
5 stars: Superb app to learn Chess! Just one small thing to add: a more detailed description about the notation and auto hints would be nice.
5 stars: A little more difficult than volume 1, but still very simple if you're more than a beginner. Great repetitive training for beginners. Great for pattern recognition. Great interface and controls. A lot of the problems come from blunders in games of young players. No theory in this Chess King product, only exercises. Good value if you're a beginner.
5 stars: An exceptional application for learning chess from the back way. At this point this is my all time favorite \
5 stars: A great application for beginners especially provides tactical skill in learning to master chess
4 stars: I like the app and it has improved my game. Not sure how accurate the ELO generator is, ...