5 stars: Edit: raised from 4 to 5*. Developer addressed my comment with a new release in less than 24hrs. This app is a very useful complement to other ear training exercises. Unique in that it uses 'real life' progressions. This is money well spent.
5 stars: Amazing app! I learned so much, definitely worth the small price.
5 stars: Great! Very helpful!
4 stars: I like the concept and the execution seems good, but I can't even try a starter pack of songs (like 3-5)? I don't know if I want to spend money or not, because I haven't played that part of the app yet.
5 stars: The app is a great way to practice and train your ear in simple to advanced progressions. Perfect for any aspiring musician, professional or amateur. I've taken to challenging my friends at the "Next Chord" game, and still hold the high score of the group.
5 stars: helpful for recognizing chord patterns!
3 stars: Pretty good. Lots of good sounding variations but all in the key of C. Biggest issue is that after you finish a pattern it plays a horrible repetition that clips badly and that you cannot stop or switch off even when you move onto the next pattern. The game element is all right but not very engaging.
5 stars: Brilliant. I think the UX can be improved during the games to streamline your hand movements between the next/play buttons, but the content is extremely well crafted.
4 stars: Got the unlocked paid content. It worth it! Will you add more keys othe then C major and...