Games v4.1.21716737
Does 逆水寒 work on iPhone Duo?
It works, but with black bars. 逆水寒 4.1.21716737 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 4.1.21716737, read Oct 24, 2026
- iPad version
- Yes
- Layout already handles big screens
- Latest version
- v4.1.21716737
- Jul 30, 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 逆水寒. 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 4.1.21716737 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 4.1.21716737 · Jul 30, 2026
夏日炎炎，有你才甜。逆水寒新世界迎来了最浪漫的一次更新！七夕特别活动甜蜜上线，等你共赴鹊桥之约。大富翁2V2双人玩法快乐出击，双人携手，赚钱我有！各位同门，我们新世界不见不散哦~
Questions
Does 逆水寒 work on iPhone Duo?
It works, but with black bars. 逆水寒 4.1.21716737 is built with the iOS 26.2 SDK, so iPhone Duo runs it in a phone-sized window on the inner display.
Does 逆水寒 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 逆水寒 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 逆水寒 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 逆水寒 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 逆水寒 within about a day of its release and update this page.
What can I do about the black bars until then?
Use 逆水寒 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.