Get ready for iPhone Duo
Learn how to prepare your apps for launch on iPhone Duo.
Videos
Meet with Apple
iPhone Duo Workshops
Join us around the world for workshops to optimize your apps and explore resizability for all screen sizes.
iPhone Duo Group Labs
Watch Group Lab replays to get insights about all things Duo.
Check out some of the most popular questions and answers.
iPhone Duo Q&As
Browse questions and answers from the iPhone Duo Q&As on the Apple Developer Forums.
Tools and documentation
Designing for iPhone Duo
Create experiences that take advantage of iPhone Duo user interface patterns.
Updating your app for iPhone Duo
Learn how to build and update your app to dynamically resize and adjust its layouts for iPhone Duo.
Stand out on the App Store
Explore best practices, templates, and specifications for App Store assets like app previews, screenshots, product page headers, and more.