Beijing Douyin Technology Co., Ltd.
Shopping v38.3.6
Does 抖省省 work on iPhone Duo?
It works, but with black bars. 抖省省 38.3.6 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 38.3.6, read Nov 3, 2026
- iPad version
- No
- Phone-only layout today
- Latest version
- v38.3.6
- Nov 2, 2026
- Duo in release notes
- Not yet
About 抖省省
抖省省 is made by Beijing Douyin Technology Co., Ltd. and first came out on the App Store in February 2026. It's only on the China App Store, where it has 10,708 ratings. Version 38.3.6 came out on Nov 2, 2026 and needs iOS 15.0 or later. It's free to download.
From its App Store listing:
【抖省省】抖音官方团购APP，陪你轻松省钱好生活 - 官方补贴，抢超低价团购 甄选品牌好品，抖省省额外加补，认准「超省价」抢超低团购 - 新人福利，瑞幸、麦当劳首单低至0.01元 新用户首周每天领至多12元优惠券，春节畅吃、畅喝乐不停~ - 更快搜索体验，轻松对比同店团购 到店搜店铺名，直接展示超低团购价，省去比价烦恼 - 抖音账号一键绑定，订单管理更省心 使用抖音号登录，抖音内的团购订单、收藏的团购店铺商品等信息一键同步，查看、管理订单超省心
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 抖省省. 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 38.3.6 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 38.3.6 · Nov 2, 2026
修复已知问题，优化用户体验
Questions
Does 抖省省 work on iPhone Duo?
It works, but with black bars. 抖省省 38.3.6 is built with the iOS 26.2 SDK, so iPhone Duo runs it in a phone-sized window on the inner display.
Does 抖省省 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 抖省省 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 抖省省 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 抖省省 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 抖省省 within about a day of its release and update this page.
What can I do about the black bars until then?
Use 抖省省 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.