Productivity v1.2026.300
Does ChatGPT work on iPhone Duo?
Yes. ChatGPT 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
- Yes
- Layout already handles big screens
- Latest version
- v1.2026.300
- Nov 3, 2026
- Duo in release notes
- Not yet
About ChatGPT
ChatGPT is made by OpenAI OpCo, LLC and first came out on the App Store in May 2023. It's #1 on today's US App Store top charts. It has 11,910,544 ratings on the US App Store, averaging 4.8 stars. Version 1.2026.300 came out on Nov 3, 2026 and needs iOS 18.0 or later. It's free to download.
From its App Store listing:
Introducing ChatGPT for iOS: OpenAI’s latest advancements at your fingertips. This official app is free, syncs your history across devices, and brings you the latest from OpenAI, including the new image generator. With ChatGPT in your pocket, you’ll find: · Image generation–Generate original images from a description, or transform existing ones with a few simple words. · Advanced Voice Mode–Tap th…
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.
OpenAI added native iPad support to the ChatGPT app in June 2023, running full screen with drag and drop for split-screen use. iPhone Duo support 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 ChatGPT. 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 8 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 1.2026.300 · Nov 3, 2026
Bug fixes and small improvements.
Questions
Does ChatGPT work on iPhone Duo?
Yes. ChatGPT is built for iPhone Duo — it runs full screen on the 7.6-inch inner display and adapts its layout for the fold.
Does ChatGPT 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 ChatGPT 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.