Shanghai Ctrip Commerce Co.,Ltd
Travel v8.97.2
Does Ctrip work on iPhone Duo?
It works, but with black bars. Ctrip 8.97.2 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 8.97.2, read Oct 31, 2026
- iPad version
- Yes
- Layout already handles big screens
- Latest version
- v8.97.2
- Oct 30, 2026
- Duo in release notes
- Not yet
About Ctrip
Ctrip is made by Shanghai Ctrip Commerce Co.,Ltd and first came out on the App Store in July 2010. It has 4,904 ratings on the US App Store, averaging 4.4 stars. Version 8.97.2 came out on Oct 30, 2026 and needs iOS 15.0 or later. It's free to download.
From its App Store listing:
携程旅行——携程在手，说走就走 携程打造了一个整合丰富旅行产品的生态系统，使每次旅行都个性化、便捷、愉悦且启发灵感。我们多样化的产品组合以及不断拓展的目的地资源，可以迎合客户日益变化的出行需求。 “酒店 – 随心安住”携程提供丰富的住宿服务产品，涵盖酒店、民宿、度假村、公寓、别墅、汽车旅馆、住宅等住宿形式；并升级上线全球酒店精选频道，覆盖海外热门目的地如巴黎、东京、迪拜、伦敦、纽约、曼谷、新加坡、悉尼、首尔、里约热内卢等，更有华人礼遇，全球200+国家/地区安心住服务；更可以预订超过200个国家/地区的全球民宿资源，包罗城堡、房车、树屋、百年建筑等新奇特色美宿，民宿性价比更高、更有当地风情，适合多人出游、还能洗衣做饭。 国内覆盖北京、上海、广州、深圳、重庆、成都、香港、澳门等120+核心城市酒店，从经济连锁到奢华五星，随心选择。 “机票 - 全球便捷”携程覆盖北美、欧洲、澳新、日韩、东南亚…
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 Ctrip. 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 8.97.2 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 8.97.2 · Oct 30, 2026
【老友会】老友会PLUS上线 ，开通最多可住24晚酒店！ 【攻略】全网攻略一键导入，AI智能规划。 【社区】“同路人”社区上线！致力于提供及时实用的旅途信息。 【笔记】旅行真探，一键还原真实旅行，拒绝滤镜“照骗”！
Questions
Does Ctrip work on iPhone Duo?
It works, but with black bars. Ctrip 8.97.2 is built with the iOS 26.2 SDK, so iPhone Duo runs it in a phone-sized window on the inner display.
Does Ctrip 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 Ctrip 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 Ctrip 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 Ctrip 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 Ctrip within about a day of its release and update this page.
What can I do about the black bars until then?
Use Ctrip 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.