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.
FAC TRANSIENT Shaper by Fred Anton Corvest - NOW Available To Buy
So here is a demo of the "soon to be released" Transient Shaper from Fred Anton Corvest called FAC TRANSIENT.
So many people have wanted a Transient Shaper app for so long now and Fred has delivered one in his usual professional manner.
I'm sure this is going to become one of those essential apps
You can Pre-Order FAC TRANSIENT Here at the App Store