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 Store
Audiobus is the app that makes the rest of your setup better.
Clipping is fun. Both for loudness and for sound design. What options are there for clipping on iOS?
AUFX Push has a clipper. BitJuggler does clipping and then some. There’s the LoFi Clipper from Nembrini but it does not have much in the way of control.
On the desktop we have KClip, StandardClip, ClippedMax, Saturate, Big Clipper, etc.