Get ready for iPhone Duo

Learn how to prepare your apps for launch on iPhone Duo.

Meet with Apple

iPhone Duo Workshops

Join us around the world for workshops to optimize your apps and explore resizability for all screen sizes.

View upcoming workshops
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iPhone Duo Group Labs

Watch a discussion about creating and updating apps for iPhone Duo.

Check out some of the most popular questions and answers from the iPhone Duo Group Labs.

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More Group Labs coming soon

iPhone Duo Q&As

Browse questions and answers from the iPhone Duo Q&As on the Apple Developer Forums.

Tools and documentation

Xcode 27.1 beta

Get the latest SDKs to build, run, and test your app for iPhone Duo.

View betas

Designing for iPhone Duo

Create experiences that take advantage of iPhone Duo user interface patterns.

Preparing your app for iPhone Duo

Learn how to build and update your app to dynamically resize and adjust its layouts for iPhone Duo.