Seems interesting but crashes

I installed and started the training exercises; this is the good part. Im a bit sad that it doesnt use the iPad microphone to hear real hands clapping: you have to tap with one finger on the iPad.
Then things went horribly wrong: the app crashes and wont re-open unless I re-install it completely.
Waiting for a serious bug fix before I re-install this app again.

Waterdelph about Steve Reich’s Clapping Music, v1.0.3