iOS SDK for Ableton Link. An overview of Link concepts can be found at https://ableton.github.io/link. All iOS specific documentation, integration guidelines, and test plans can be found at https://ableton.github.io/linkkit.
The LinkKit SDK is distributed as a zip file attached to a release in this repo. Please see the releases tab for the latest release. It is strongly recommended to build apps against an official release for final submission to the App Store. Official releases are those not marked "Pre-release".
Link uses UDP multicast messages on the local area network to find other peers. Apple added security measures to iOS 14, that require a special entitlement for the app to be able to send those messages. You can find more information in the LinkKit documentation.
Apple enforces entitlements more strictly since iOS 17. To be able to detect other Link peers on the LAN your application needs the com.apple.developer.multicast entitlement.
It is strongly recommended to use the pre-built version of LinkKit. For debugging and accommodation of exceptional requirements, it is possible to build LinkKit as described below.
Custom builds of LinkKit depend on the cross-platform version of Link and are subject to this license. Please note that the GPL is not compatible with the iOS App Store.
To generate and open a Xcode Project, use make xcode link_dir=$PATH_TO_LINK_REPOSITORY.
The Xcode Project will be located in the build directory.
Use make link_dir=$PATH_TO_LINK_REPOSITORY to generate a release bundle for all target platforms.
The bundle can be found at build/output/LinkKit.zip.