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.
AUM-access all parts of the project from one screen
Undoubtedly Aum is the most important application for many iOS musicians. Aum provides the ability to simultaneously control many applications. but when the project is very large, you have to scroll through the screen to get to various parts of the project, which is not always convenient. please make it possible to access all parts of the project from one screen, for example by switching to a more minimalistic and compact form of data display.
it will help a lot in a live situation.