Useless app
This app only lets you either shuffle the ten lowest notes On the piano, or shuffle every single note on the piano. Ridiculous.
Waste of time and effort
Yes this app is the free version but there are no instructions. It does not allow you to do a great deal other than change display of notes. It would be great if you could have half of the functions of the full app to play around with which might seduce you to buy the full version.
What the heck?!
This app has no instructions