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

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.

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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WeatherKit - Data Sources Weather Models National Weather Service/National Oceanic and Atmospheric Administration (NOAA) Environment and Climate Change Canada Deutscher Wetterdienst The Met ...

Launch your app on a simulated iOS, iPadOS, tvOS, visionOS, or watchOS device, or on a physical device paired with your Mac. To test your app, build and run it on a simulated or physical device. Use ...

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WeatherKit brings valuable weather information to your apps and services through a wide range of data that can help people stay up to date, safe, and prepared. It’s easy to use WeatherKit in your apps ...

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Browse some of the biggest moments from an incredible set of video sessions.