> For the complete documentation index, see [llms.txt](https://help.branch.io/llms.txt).

# iOS SDK

9 articles

- [iOS SDK Overview](https://help.branch.io/developer-hub/ios-sdk-overview.md): Learn the basics of the Branch iOS SDK. (updated 2026-08-20)
- [iOS SDK Basic Integration](https://help.branch.io/developer-hub/ios-basic-integration.md): Integrate the Branch iOS SDK with our step-by-step guide, covering configuration, installation, and validation for seamless deep linking and tracking. (updated 2026-08-20)
- [iOS SDK 4.0 Upgrade (Beta)](https://help.branch.io/developer-hub/ios-sdk-4-integration.md): Upgrade your app from the Branch iOS SDK 3.x to the 4.0 beta, with a ready-made prompt for AI coding assistants and a BranchConfiguration reference. (updated 2026-10-15)
- [iOS SDK Advanced Features](https://help.branch.io/developer-hub/ios-advanced-features.md): Implement advanced Branch iOS SDK features in Swift or Objective-C, with prerequisites and code for each method. (updated 2026-08-20)
- [iOS SDK Testing](https://help.branch.io/developer-hub/ios-testing.md): Test your Branch iOS SDK integration with these scenarios and tools to confirm deep linking and attribution work. (updated 2026-08-21)
- [iOS SDK Troubleshooting](https://help.branch.io/developer-hub/ios-troubleshooting.md): Fix common problems when integrating the Branch iOS SDK, with causes and solutions for each issue. (updated 2026-08-18)
- [iMessage Apps](https://help.branch.io/developer-hub/imessage-apps.md): Bundle the Branch SDK into your iMessage extension app to support deep linking from iMessage on iOS. (updated 2026-08-20)
- [iOS SDK Version History](https://help.branch.io/developer-hub/ios-version-history.md): Find the version history and release notes for the Branch iOS SDK in the open-source GitHub repository. (updated 2026-08-14)
- [iOS SDK Full Reference](https://help.branch.io/developer-hub/ios-full-reference.md): Full reference for the Branch iOS SDK, covering every method, parameter, and return value available to your app. (updated 2026-08-20)