
Apple Opens App Store Submissions for iPhone Duo Ahead of October 23 Launch
Apple has begun accepting App Store submissions for apps optimized for the iPhone Duo, its first foldable smartphone. Developers can now use Xcode 27.1 to build and test apps, with a badge indicating optimization appearing on product pages. While existing apps will run, only those built with the iOS 27.1 SDK can fully utilize the inner display without black borders. The device launches on October 23, with pre-orders starting October 16. Apple requires iPhone Duo screenshots for all submissions starting April 2027.












