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.
Audiobus 3 + Ableton Link Start Stop Sync
Hey! Some of you guys already beat me to the punch, but I thought I'd post this here so it's more visible:
You might have heard that Ableton Link, the technology that lets apps and devices play in time with each other, has a new trick this week: Start Stop Sync. This allows apps to share transport state with each other, and with Ableton Live.
Press play in one app, and everything else starts along with it, in time.
It's really cool, and the new version of Audiobus 3, out this week, supports Start Stop Sync out of the box! Yep: Audiobus compatible apps get Start Stop Sync support for free. Audiobus will automatically translate start and stop messages from Link to those Audiobus-compatible apps with a play button, so everything just works.