Needs a lot of work
barely functioning UI, frequent crashes, random help/promotional screens with no back option which forces you to close the app and reopen it, these screens frequently come after you finish an excersize, and closing the app deletes the data from that recording. the app is not usable in its current state. even *if* all the above issues were fixed, all of the actual useful features and advertised functions of the app are locked behind a subscription paywall (yes, not even a one time fee, a subscription) the way the app works is also fundamentally flawed. unless you have abnormally long (like, really abnormally) headphones, more specifically ones that are abnormally long *after* they split into L and R wires, you're going to have an extremely hard time just getting the app to work. because your phone needs to have one earbud next to its mic for this app to work, the maximum distance from your phone to you is however far your two earbuds can be apart. and the rest of your headphone wire will just dangle between you and the phone. I shouldn't have to explain why this is a bad thing to have right next to rapidly moving arms and sticks. you're better off recording yourself with a metronome and opening the waveform in audacity (a free program!)