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.
Off topic but for modular fans maybe of interest
![[Deleted User]](https://secure.gravatar.com/avatar/2d326a427de386b35a33e0aea545622a/?default=https%3A%2F%2Fvanillicon.com%2F60730df90c4df95da0739958f5410d15_200.png&rating=g&size=200)
Such a thing would be great on iPads (especially the 12.9") as well.
Copied from another forum (KVR):
"VCV is designed to be a complete DAW for creating modular synthesizer compositions, or as an extension of your existing Eurorack system for trying new modules using an audio interface for audio and CV.
The first Beta release will be available for download in September 2017 and will include 25+ modules, including original designs in collaboration with Grayscale and ports from Mutable, Befaco, and Synthesis Technology."
https://vcvrack.com
Great it's open source.