iPhone Duo is scheduled for release on October 23, 2026. Developers can prepare their apps by building or recompiling them with Xcode. Xcode version 27.1 specifically includes development support for the iPhone Duo. The Device Hub feature within Xcode will assist in visualizing app behavior across different iPhone Duo poses and orientations. Developers are encouraged to register for an iPhone Duo workshop to gain further insights. App Store product page assets also require updates to showcase apps effectively on the new device. New specifications for screenshots and app previews are available, covering all orientations. A preview tool in App Store Connect allows visualization of app assets on the iPhone Duo. Developers can begin submitting optimized apps and games for iPhone Duo today. Starting April 2027, iPhone Duo screenshots will be mandatory for all new app submissions.