Shopping v15.5.9
Does SHEIN work on iPhone Duo?
It works, but with black bars. SHEIN 15.5.9 is built with the iOS 26.0 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 26.0 SDK
- Version 15.5.9, read Nov 1, 2026
- iPad version
- Yes
- Layout already handles big screens
- Latest version
- v15.5.9
- Oct 31, 2026
- Duo in release notes
- Not yet
About SHEIN
SHEIN is made by ROADGET BUSINESS PTE. LTD. and first came out on the App Store in May 2014. It's #91 on today's US App Store top charts. It has 4,068,039 ratings on the US App Store, averaging 4.7 stars. Version 15.5.9 came out on Oct 31, 2026 and needs iOS 15.0 or later. It's free to download. Among the 28 shopping apps we track on the US App Store, 11 already fill the inner display, 2 are partly adapted and 15 still show black bars. By number of ratings, SHEIN is #9 of them.
From its App Store listing:
Everything you love, now at your fingertips! SHEIN is a fun and ultra-affordable online shopping platform. From fashion apparel to home, beauty, accessories, shoes and pets, plus electronics, tools, office and more, SHEIN is dedicated to meeting all your needs in life. We'll keep you in the loop with push notifications about new drops and more. You can also engage with other SHEIN lovers in real t…
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 SHEIN. 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 15.5.9 is built with the iOS 26.0 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 26.0 SDK
Latest release notes
Version 15.5.9 · Oct 31, 2026
Recent updates: 1. We've fixed some issues and made performance improvements to provide you with a better experience. 2. More surprises are waiting for you to explore on the SHEIN App!
Questions
Does SHEIN work on iPhone Duo?
It works, but with black bars. SHEIN 15.5.9 is built with the iOS 26.0 SDK, so iPhone Duo runs it in a phone-sized window on the inner display.
Does SHEIN 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 SHEIN 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 SHEIN 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 SHEIN 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 SHEIN within about a day of its release and update this page.
What can I do about the black bars until then?
Use SHEIN 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.