One of my favorite apps
I use this app every single day, and my ability to hear pitch relationships has gotten much stronger. Its not a "game," but it is a lot of fun, like any well made tool. I dont know of another ear training app that does chord progressions. I always look forward to their updates, because they sometimes come with new lessons. Maybe some tutorials to explain some of the theory behind the lessons would be interesting and helpful. But if you are already studying music, and using this as a supplement to hone your skills, this is perfect.
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Ear Trainer, v2.5