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Does 航旅纵横-民航官方直销平台 work on iPhone Duo?

It works, but with black bars. 航旅纵横-民航官方直销平台 8.6.7 is built with the iOS 26.2 SDK, so iPhone Duo runs it in a phone-sized window on the inner display.

Black barsFrom the app's buildLast checked
Illustration: app runs in a phone-sized window with black bars on both sides
航旅纵横-民航官方直销平台 on the inner display — black bars

At a glance

Inner display (7.6″)
Black bars
Outer display (5.4″)
Works normally
Built with
iOS 26.2 SDK
Version 8.6.7, read Nov 4, 2026
iPad version
No
Phone-only layout today
Latest version
v8.6.7
Nov 3, 2026
Duo in release notes
Not yet

About 航旅纵横-民航官方直销平台

航旅纵横-民航官方直销平台 is made by China Travelsky Technology Limited and first came out on the App Store in December 2011. It has 3,075 ratings on the US App Store, averaging 4.6 stars. Version 8.6.7 came out on Nov 3, 2026 and needs iOS 13.0 or later. It's free to download.

From its App Store listing:

航旅纵横,伴你出行每一程 我们是国家队:中国民航信息官方出品,民航机票官方直销平台。 我们只提供权威、及时、精确、全面的航班、机票、机场信息。 【您想不到的功能我们有】 民航官方直销平台:来这买源头机票,0差价·0捆绑·0套路 自动导入行程:无须您手动添加,行程自动跳到碗里来 3D飞行视频:连接你在地球上飞过的每个角落 火车抢票:抢不到火车票?有票神器帮你抢 机上打牌聊天:无网也能聊天和娱乐,快试试机上模式 全球精品商城:线上点一点,免税商品送到家 【您想到的功能我们也有】 电子登机牌:无需兑换纸质登机牌,一码快捷通行 航班动态:航班动态及时晓,官方数据任您查 手机值机:随时随地在线选座位,还能选状态和留言 用车:接送机延误免费等、误机必赔偿,租车场站取还便捷、免千元押金 酒店预订:专属客服7x24小时守候,海量酒店等你来订 机场雷达:手机变雷达,查看机场上空飞机实时动向 常客卡:支持不同…

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.

Why some apps show black bars on iPhone Duo

In Split View

iPhone Duo is the first iPhone that can show two apps side by side, and every app takes part — including 航旅纵横-民航官方直销平台. 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.

How Split View works on iPhone Duo

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

  1. App build,

    Version 8.6.7 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 8.6.7 · Nov 3, 2026

本次更新: 【行程动态】地图样式优化,体验更优。

Questions

Does 航旅纵横-民航官方直销平台 work on iPhone Duo?

It works, but with black bars. 航旅纵横-民航官方直销平台 8.6.7 is built with the iOS 26.2 SDK, so iPhone Duo runs it in a phone-sized window on the inner display.

Does 航旅纵横-民航官方直销平台 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 航旅纵横-民航官方直销平台 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 航旅纵横-民航官方直销平台 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 航旅纵横-民航官方直销平台 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 航旅纵横-民航官方直销平台 within about a day of its release and update this page.

What can I do about the black bars until then?

Use 航旅纵横-民航官方直销平台 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.