Great lessons, content, and learning potential (and the price is comparable to other similar apps which is impressive for how close it gets to in-person lessons), but there are a few fixes needed before it would work well for me:
On practice songs (where it’s following your playing and there isn’t background music), I don’t like that the scrolling bar completely skips over rests. Sometimes the screen even scrolls past an entire measure that’s just a rest. I don’t want to just practice pitch in isolation of pacing/rhythm.
On the songs with background music, I love the way it’s supposed to work and the selections, but either my internet or phone must be too slow, because it says I’m late on almost every note, and slightly pauses each time (I guess so I can catch up, except I already played it right on tempo), making for a choppy playing experience. I have two other similar apps and neither of them ever have this problem, so I think it can be fixed and would love to enroll in premium (I have the trial right now) once it works!