Get tips on submitting your iPhone Duo app, sign up for new iPhone Duo Group Labs, browse new activities, explore localized ...

Make sure your app is ready for iPhone Duo on day one. Run the app resizability skill, fix layout patterns, and test resizing to help your app shine.

Get tips on submitting your iPhone Duo app. Sign up for new iPhone Duo Group Labs. Join us for a new developer event on speed and efficiency. Explore localized documentation. Browse new App Store ...

Phone Duo will be available to customers starting October 23, 2026. To get your apps and games ready today, you can:Build or ...

We give developers powerful APIs to build incredible capabilities into their apps for Apple products, backed by a set of ...

The original Developer ID Certification Authority (Sub-CA) expires on February 1, 2027. Certificates issued by this authority will stop working on that date.What to do: Check if you’re affected. In ...

Get Figma and Sketch design kits for iPhone Duo from the Apple Design Resources. Download design kits from the Apple Design Resources Sign up for workshops around the world to learn how to optimize ...

The beta versions of iOS 27.2, iPadOS 27.2, macOS 27.2, tvOS 27.2, visionOS 27.2, and watchOS 27.2 are now available. Get your apps ready by confirming they work as expected on these releases. And ...

As part of agreements with select European competition authorities, Apple is introducing changes to its App Tracking Transparency framework in the European Union. Beginning with iOS 27.2 and iPadOS 27 ...

Start getting ready for iPhone Duo today. Watch new videos, sign up for Group Labs, and take part in Q&As on the Apple Developer Forums.

iOS 27, iPadOS 27, macOS 27, tvOS 27, visionOS 27, and watchOS 27 will soon be available to customers worldwide, which means you can now submit apps and games that take advantage of the latest Apple ...