Tongcheng Network Technology Co., Ltd.
Travel v11.5.2
Does 同程旅行-订酒店机票火车票,低价打车 work on iPhone Duo?
It works, but with black bars. 同程旅行-订酒店机票火车票,低价打车 11.5.2 is built with the iOS 26.5 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 26.5 SDK
- Version 11.5.2, read Oct 29, 2026
- iPad version
- Yes
- Layout already handles big screens
- Latest version
- v11.5.2
- Oct 28, 2026
- Duo in release notes
- Not yet
About 同程旅行-订酒店机票火车票,低价打车
同程旅行-订酒店机票火车票,低价打车 is made by Tongcheng Network Technology Co., Ltd. and first came out on the App Store in November 2011. It has 1,115 ratings on the US App Store, averaging 4.6 stars. Version 11.5.2 came out on Oct 28, 2026 and needs iOS 15.0 or later. It's free to download.
From its App Store listing:
同程旅行，新一代旅行平台。 作为中国的优质在线旅行服务提供商之一，为2亿用户随时随地提供专业的机票、酒店、火车票、汽车票、门票、国内外度假线路等全方面旅游产品的在线预订服务，让用户享受更便捷、更舒适的旅行。 【产品功能】 1、新客礼包：同程旅行APP新用户可在同程APP内参与领取新客大礼包，内含国内机票、火车票、国内酒店、景点门票、汽车票、打车等新客专享红包，先领券再下单更划算，详情以活动内规则为准。 2、火车票：购票便捷，支持在线抢票、在线选座；票种多样，支持成人票、儿童票、学生票；智慧出行，智能推荐火车中转、多买几站、同车换乘等出行方式。 3、酒店：百万家酒店覆盖国内海外，钟点房/品牌连锁/民宿等多形态应有尽有，亲子/差旅/度假等多场景一应俱全。 4、机票：特价机票天天有，最低1折起；价格透明，大额优惠券天天领；免费选座，在线值机，随时掌控航班最新状态；线上退改更便捷，退改签不收取额外…
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 同程旅行-订酒店机票火车票,低价打车. 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 11.5.2 is built with the iOS 26.5 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 11.5.2 · Oct 28, 2026
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Questions
Does 同程旅行-订酒店机票火车票,低价打车 work on iPhone Duo?
It works, but with black bars. 同程旅行-订酒店机票火车票,低价打车 11.5.2 is built with the iOS 26.5 SDK, so iPhone Duo runs it in a phone-sized window on the inner display.
Does 同程旅行-订酒店机票火车票,低价打车 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 同程旅行-订酒店机票火车票,低价打车 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 同程旅行-订酒店机票火车票,低价打车 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 同程旅行-订酒店机票火车票,低价打车 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 同程旅行-订酒店机票火车票,低价打车 within about a day of its release and update this page.
What can I do about the black bars until then?
Use 同程旅行-订酒店机票火车票,低价打车 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.