I just bought it, the microphone doesn’t seem to do a lot (and I don’t gave access to camera) but I will try it out later.

It’s a well thought app. The core function is really good, I will enjoy trying out the different exercises! The design of the homescreen could be better, looks a bit cluttered.

Maybe some background information if it takes off in the future would be nice for people who don’t know the science behind each breath type.

Other than that, I wish you success!