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.

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 ...

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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 ...

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 ...

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 ...

iPhone Duo is the first folding iPhone and comes with a reimagined iOS. Get to know the design principles behind the updated software, explore how controls move between different poses, and learn ...

Attachment 14 of the Apple Developer Program License Agreement has been added to specify updated terms for apps in the European Union, including alternative distribution, alternative payments, and ...

Safari 26.6 is available for iOS 26.6, iPadOS 26.6, visionOS 26.6, macOS 26.6, macOS Sequoia, and macOS Sonoma. Fixed an issue where the ic length unit scaled incorrectly with page zoom, causing it to ...