{
  "id": 7488925,
  "title": "Apple iPhone Duo makes developers think in folds",
  "url": "https://urgent.news/2026/09/15/apple-iphone-duo-makes-developers-think-in-folds",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-09-15T05:55:00.000Z",
  "source": {
    "name": "The Register Science",
    "slug": "the-register-science",
    "url": "https://www.theregister.com/devops/2026/09/15/apple-iphone-duo-makes-developers-think-in-folds/5296415"
  },
  "original_language": "en",
  "account": "The upcoming Apple iPhone Duo, set for release on October 23, has developers contemplating a new design challenge: folding displays. Atharva Deosthale, an Appwrite developer advocate, emphasizes that folding and unfolding is a normal part of device use, meaning apps must adapt to preserve state and respond cleanly when the display changes.\n\nApple's new smartphone boasts two screens: a 5.4-inch outer display atop the case and a 7.6-inch inner display within. Upon opening or closing the device, the app seamlessly transitions to the visible screen. Apple has published extensive documentation to guide developers in preparing for this new form factor.\n\nThe iPhone Duo runs iOS 27.1, but will run unaltered iPhone apps in a manner similar to iPad apps. Developers need to learn new techniques to optimize their apps for the foldable form factor, as the user may interact with the app in various postures, including \"tabletop posture\" or \"book posture.\"\n\nThe foldable display allows for smooth transitions, with both screens featuring a 120 Hz adaptive refresh rate thanks to Apple's ProMotion technology. Apps must run smoothly and maintain state during these transitions. The device also supports running two apps simultaneously through \"Split View.\"\n\nApple is updating its Xcode IDE to accommodate this new topology, and developers will need to adjust their app layouts and behavior to ensure a consistent experience when the display changes. Some challenges include apps with fixed layouts, hardcoded dimensions, or view controllers that reload on size change, which can appear stretched. Developers should also ensure that user data and session identity are preserved when switching screens.",
  "summary": "Cupertino's $2,000 foldable gives devs more screen, and more UI state to manage",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 4,
    "also_reported_by": [
      {
        "outlet": "9to5Mac",
        "title": "9to5Mac Daily: September 14, 2026 – Apple retail changes, iPhone 18 Pro pre-orders",
        "url": "https://urgent.news/2026/09/15/9to5mac-daily-september-14-2026-apple-retail-changes-iphone-18-pro",
        "published": "2026-09-15T00:53:36.000Z"
      },
      {
        "outlet": "The Register",
        "title": "Apple iPhone Duo makes developers think in folds",
        "url": "https://urgent.news/2026/09/15/apple-iphone-duo-makes-developers-think-in-folds-7491430",
        "published": "2026-09-15T05:55:00.000Z"
      },
      {
        "outlet": "Creative Bloq",
        "title": "The branding of Apple's rumoured iPhone gaming controllers is kind of weird",
        "url": "https://urgent.news/2026/09/15/the-branding-of-apples-rumoured-iphone-gaming-controllers-is-kind-of",
        "published": "2026-09-15T06:00:00.000Z"
      }
    ]
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}