Apple Announces iPhone Duo Apps Can Now Be Submitted to App Store
Apple today announced that apps optimized for the iPhone Duo can now be submitted for App Store approval, ahead of the foldable device launching on Friday, October 23.
While existing App Store apps will automatically run on the iPhone Duo, only apps built with the iOS 27.1 SDK or later can dynamically resize to fill the entire space of the inner display, whereas unoptimized apps will have black borders. Developers can get their apps ready for the iPhone Duo using Xcode 27.1, and Apple shared some tips on its website.
Popular Stories
Some Apple retail employees have been told to warn customers against visiting to purchase an iPhone Duo without a pre-order on Friday, October 23.
Apple Store employees told MacRumors that they have been advised that there will likely be no iPhone Duo stock available for walk-in purchases on launch day. Staff have been instructed to discourage customers without pre-orders from coming in...
With just three days to go until the iPhone Duo is released, Apple is getting ready for the launch. Behind the scenes, the App Store now has screenshots of Apple's built-in apps running on the Duo. We've seen some apps in marketing materials, but images of the ones we haven't seen give us an idea of what it will be like using the iPhone Duo day to day.
Many apps are shown in landscape...
Despite knowing that the iPhone Duo would face "severe supply constraints" due to manufacturing challenges, Apple chose to begin iPhone Duo pre-orders on Friday instead of waiting until it had more inventory ready, according to Bloomberg's Mark Gurman. In his Power On newsletter today, he called this decision a "major mistake."
"Let me cut to the chase: Apple made a major mistake here," he...
![Apple Pulls Keynote, Pages and Numbers From App Store [Update: Back]](https://images.macrumors.com/t/Okb7kitB_gNr6qe5Pex9nQIysD8=/112x112/article-new/2026/01/Apple-Creator-Studio-iWork-suite.jpg)
