Keezy Drummer - Make a beat in seconds
FL Studio Mobile - Create & save multi-track music projects on a smartphone
AutoDrum - AutoDrum" is free, open source software for automatic drum performance.
Bandlab - Capture, nurture, and collaborate on song ideas in the cloud
Band-in-a-Box - Band-in-a-Box is so easy to use!
GarageBand - GarageBand is a fully equipped music creation studio for Mac