If you’re keen to test out one of the many music apps that are on the App Store, but aren’t quite prepared to fork out £4 or more, then you ought to look at Mini Piano. It gives you an octave of piano keys to play with, and all you do is tap the piano keys you want to play. You can’t really argue as it’s a free app, but it would have been cool if you could have switched octaves and moved up and down the register or if you could record, but we’re guessing you get what you (don’t) pay for.The piano sound is bright and authentic, and this is definitely worth downloading just to muck about with. You will, however, have to stump up the cash if you want to do any more than just tap the same group of keys over and over again. A nice app that’s well executed, but severely lacking in features.