Keezy Drummer - Make a beat in seconds
Audulus - A universe of sound at your fingertips - Audulus is a modular music processing app
Sampulator - Make (and record) beats on your keyboard
Figure - Propellerhead creates world-class software products and services that inspire music makers and provide the foundation for a worldwide creative musical community.
Auxy Music Studio - Auxy brings real music creation to iPhone in a simple and inspiring format.
FL Studio Mobile - Create & save multi-track music projects on a smartphone