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.
Deregulator to get significant upgrades including MIDI
Posted on the developer CKEK Software's Facebook page on 06/25/14
For today Deregulator is on massive update process. Little tweaks to engine, now you can focus on desirable frequency when dumping reverb, off course its randomisible. Added MIDI-inputs for every control and now you can receive MIDI-clock aaaand received BPM also can be chopped and randomized to be in rhythm with entire composition. Look forward to MIDI-mapping and new clearer switchless interface.