Get ready for iPhone Duo

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

Videos

Design for iPhone Duo
Prepare your app for iPhone Duo
Raise the bar with iPhone Duo
Strike a pose with adaptive layouts on iPhone Duo
Leverage multiple displays and scenes on iPhone Duo
Build a great camera experience for iPhone Duo
iPhone Duo Group Lab | Day 1
iPhone Duo Group Lab | Day 2

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
A speaker presenting to a seated audience in front of a large screen at an Apple Developer Center.

iPhone Duo Group Labs

Sign up for new Group Labs to ask questions, get answers, and follow the discussion about all things Duo.

Check out some of the most popular questions and answers.

Read now

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 Release Candidate

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.

Shine on the App Store

Explore best practices, templates, and specifications for App Store assets like app previews, screenshots, product page headers, and more.