Simply one of the most expressive music apps on iOS!

Thumbjam is great and keeps getting better.

As the title says, one of the most expressive music apps on iOS.

Comes with a large number of instrument samples and you can add more, and can use up to 8 samples at the same time via MIDI and drive four on the screen simultaneously too.

Worth every penny and then some.

MusicInclusive LLC about ThumbJam, v2.5.1