Audiobus: Use your music apps together.
What is Audiobus? — Audiobus is an award-winning music app for iPhone and iPad which lets you use your other music apps together. Chain effects on your favourite synth, run the output of apps or Audio Units into an app like GarageBand or Loopy, or select a different audio interface output for each app. Route MIDI between apps — drive a synth from a MIDI sequencer, or add an arpeggiator to your MIDI keyboard — or sync with your external MIDI gear. And control your entire setup from a MIDI controller.
Download on the App StoreAudiobus is the app that makes the rest of your setup better.
Rhythm Pad gets the Bus
Rhythm Pad is a fun playable set of pads with 10 kits to choose and pads that sound louder when hit in the middle. Nice drums for people that want to play by hitting your Ipad. iPhone version too. Free version has Audiobus as well!