Yes, Polyrhythm ポリリズムでリズムトレーニング is completely free and it doesn't have any in-app purchases or subscriptions.
Not enough reviews to make a reliable assessment. The app needs more user feedback.
Polyrhythm ポリリズムでリズムトレーニング is free.
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App is actually pretty great. Easily practice different 3:4 and 4:3 patterns for free. Not a good metronome but that's not the point. Each exercise is musical so you're not just listening to clicks and toms. If you want a simple polyrhythm practice tool for free give this a shot.
