Social Networking v454.0
Does Threads work on iPhone Duo?
Yes. Threads is built for iPhone Duo — it runs full screen on the 7.6-inch inner display and adapts its layout for the fold.
At a glance
- Inner display (7.6″)
- Built for Duo
- Outer display (5.4″)
- Works normally
- Built with
- Not read yet
- We read each app's build SDK after it updates
- iPad version
- No
- Phone-only layout today
- Latest version
- v454.0
- Nov 2, 2026
- Duo in release notes
- Not yet
About Threads
Threads is made by Instagram, Inc. and first came out on the App Store in July 2023. It's #13 on today's US App Store top charts. It has 2,348,106 ratings on the US App Store, averaging 4.6 stars. Version 454.0 came out on Nov 2, 2026 and needs iOS 16.3 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, Threads is #10 of them.
From its App Store listing:
Discover new perspectives and connect through conversation on Threads. See what people are talking about right now—from niche interests to big moments. With communities, you can find people who also care about your interests on Threads. Reply, listen, share or just follow along. Here’s what you can do on Threads: ■ Start a thread, share your take Have something on your mind? Take it to Threads. Sh…
On the inner display
The app reaches the edges of the inner display. Text and controls stay a comfortable size instead of being blown up.
Meta has not released an iPad-specific version of Threads. Cult of Mac noted in June 2025 that, once Instagram reached iPad, Threads would likely be Meta's only major service without a dedicated iPad app.
In Split View
iPhone Duo is the first iPhone that can show two apps side by side, and every app takes part — including Threads. 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 Store,
App Store listing has screenshots made for iPhone Duo
The developer published 6 screenshots for iPhone Duo’s inner display.
- : Not confirmed yet → Full screen — built with the iOS 27.1 SDK
- : Full screen → Built for Duo — its App Store listing has iPhone Duo screenshots
Latest release notes
Version 454.0 · Nov 2, 2026
We’re working fast to regularly update our app. To experience the newest features and improvements, download the latest version of the app.
Questions
Does Threads work on iPhone Duo?
Yes. Threads is built for iPhone Duo — it runs full screen on the 7.6-inch inner display and adapts its layout for the fold.
Does Threads 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 Threads 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.