A big downside is that the app requires that you have a camera, which is not the case with the Kindle Fire.
Note to other review of this program:
It is very unfair, as happened in a previous review, to give the app a few points, because you obviously do not know what Python is, and therefore can not do anything with the program.
I buy me a piano yes and then give him just one point, just because I can not play the piano.
