Apple just updated GarageBand for iOS to version 1.4, adding support for the Audiobus API, which allows users to live stream audio from any compatible third party music app into other compatible music apps.
Described as an “inter-app audio routing system,” Audiobus supports popular apps like Animoog, Auria, and Magellan.
With Audiobus integration, GarageBand users can stream instruments and sounds from other Audiobus-enabled apps into a GarageBand session. More than 100 apps currently support Audiobus. The update also includes a few other minor enhancements.
-Play and record music apps supported by Audiobus directly into GarageBand
-Turn off grid snapping to get finer control over region and note editing
-Fixes an issue that resulted in feedback while connecting 3rd-party audio accessories into the headphone/microphone jack
The addition of Audiobus support to GarageBand is notable because it improves upon the currently limited ability for apps to communicate with one another and because it marks the first time Apple has integrated a third party app into one of its core offerings.