Does 梦想城镇 work on iPhone Duo?
It works, but with black bars. 梦想城镇 39.1.0 is built with the iOS 26.2 SDK, so iPhone Duo runs it in a phone-sized window on the inner display.
At a glance
- Inner display (7.6″)
- Black bars
- Outer display (5.4″)
- Works normally
- Built with
- iOS 26.2 SDK
- Version 39.1.0, read Oct 24, 2026
- iPad version
- Yes
- Layout already handles big screens
- Latest version
- v39.1.0
- Oct 14, 2026
- Duo in release notes
- Not yet
On the inner display
Apps built with older SDKs are placed in a phone-sized safe area on a black background. Everything works; you just don't get the bigger screen.
In Split View
iPhone Duo is the first iPhone that can show two apps side by side, and every app takes part — including 梦想城镇. Open it on the inner display, then add a second app next to it. You can save the pair and come back to it later.
Duo-specific features
None confirmed yet. Duo-specific features include side toolbars, layouts that react to the fold, and content on the outer display while the app is open inside.
Evidence & history
App build,
Version 39.1.0 is built with the iOS 26.2 SDK
Apple runs apps built with the iOS 26 SDK or earlier in a phone-sized window on the inner display.
- : Not confirmed yet → Black bars — built with the iOS 26.2 SDK
Latest release notes
Version 39.1.0 · Oct 14, 2026
新版本即将上线！ 看看《梦想城镇》都有哪些新内容吧！ 赛季冒险活动： * 开启荒野西部冒险，沉浸在万圣节的氛围中！开通西部和万圣节通行证，赢取资源来发展和装饰你的小镇！ 惊险刺激的新冒险： * 理查德和警长必须调查一起惊天大案，追踪神出鬼没的窃贼，并在被盗的马匹永远消失前将其找回！ * 帮助理查德和艾伦揭开危险变异植物的秘密，摧毁变异源头，阻止即将到来的灾难！ 其他亮点： 在全新的赛舟会赛季中，向百慕大和哈德逊扬帆起航！ 全新三消元素：彩色玻璃！ 全新小镇建筑：共享办公空间和古宅！
Questions
Does 梦想城镇 work on iPhone Duo?
It works, but with black bars. 梦想城镇 39.1.0 is built with the iOS 26.2 SDK, so iPhone Duo runs it in a phone-sized window on the inner display.
Does 梦想城镇 work on the outer display?
Yes. iPhone Duo's 5.4-inch outer display behaves like a regular iPhone screen, so every iPhone app works there as usual.
Can I use 梦想城镇 in Split View on iPhone Duo?
Yes. On iPhone Duo every app can be placed side by side with another app on the inner display — developers don't need to opt in. How comfortable it feels at half width depends on the app's layout.
Why does 梦想城镇 have black bars on iPhone Duo?
Apps built with the iOS 26 SDK or earlier run in a phone-sized window on the inner display, and iOS 27 builds can still leave some space empty. The bars disappear once the developer rebuilds the app with the iOS 27.1 SDK — you only need to update the app.
When will 梦想城镇 fill iPhone Duo's inner display?
When its developer releases an update built with the iOS 27.1 SDK or later. We read the SDK of every new version of 梦想城镇 within about a day of its release and update this page.
What can I do about the black bars until then?
Use 梦想城镇 on the outer display, where it works like on any iPhone, or put it in Split View next to another app on the inner display so less of the screen goes unused.