Entertainment v47.6.0
Does TikTok work on iPhone Duo?
Mostly. TikTok fills most of iPhone Duo's inner display but still leaves some unused space around the app.
At a glance
- Inner display (7.6″)
- Partly adapted
- Outer display (5.4″)
- Works normally
- Built with
- Not read yet
- We read each app's build SDK after it updates
- iPad version
- Yes
- Layout already handles big screens
- Latest version
- v47.6.0
- Nov 2, 2026
- Duo in release notes
- Not yet
About TikTok
TikTok is made by TikTok Ltd. and first came out on the App Store in April 2014. It's #3 on today's US App Store top charts. It has 18,423,008 ratings on the US App Store, averaging 4.7 stars. Version 47.6.0 came out on Nov 2, 2026 and needs iOS 15.0 or later. It's free to download. Among the 22 social apps we track on the US App Store, 11 already fill the inner display, 4 are partly adapted and 7 still show black bars. By number of ratings, TikTok is #4 of them.
From its App Store listing:
TikTok is the global discovery platform for videos, streaming on LIVE, shopping, and more. Our mission is to inspire creativity and bring joy. Over a billion people come to TikTok to share what they love, learn new things, and find ideas that make everyday life more interesting. Your experience on TikTok is built around what you're into, not who you know. Just watch, like, and scroll to discover v…
On the inner display
Built with the iOS 27 SDK, the app extends across most of the inner display, but some areas stay empty. It's usable, just not polished.
On Samsung’s Galaxy Z Fold 8, Tom’s Guide reports that TikTok’s inner-display layout plays videos on the left with comments on the right. How TikTok will look on iPhone Duo’s inner display is not confirmed yet.
In Split View
iPhone Duo is the first iPhone that can show two apps side by side, and every app takes part — including TikTok. 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 47.5.0 is built with the iOS 27.0 SDK
Apple gives apps built with the iOS 27.0 SDK more of the inner display, with some space left over.
- : Not confirmed yet → Partly adapted — built with the iOS 27.0 SDK
Latest release notes
Version 47.6.0 · Nov 2, 2026
Quickly find and tag your friends in comments.
Questions
Does TikTok work on iPhone Duo?
Mostly. TikTok fills most of iPhone Duo's inner display but still leaves some unused space around the app.
Does TikTok 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 TikTok 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 TikTok 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 TikTok 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 TikTok within about a day of its release and update this page.
What can I do about the black bars until then?
Use TikTok 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.