Audiobus provides an SDK to developers that want to integrate the ability to support the Audiobus app and a long list of popular music creation apps have already taken part, including: Cubasis, Animoog, many of Korg’s apps, JamUp, Loopy, and now GarageBand. You can see a full list of apps that support Audiobus here. The Audiobus app will cost you an extra $9.99 on top of the cost of GarageBand ($4.99).
Other improvements in today’s update include the ability to turn off grid snapping to easier control the placement of regions when editing and a fix for issues with third-party audio accessories:
• 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