Social Networking v26.9.1
Does KakaoTalk work on iPhone Duo?
Yes. KakaoTalk 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
- iOS 27.1 SDK
- Version 26.9.1, read Oct 24, 2026
- iPad version
- Yes
- Layout already handles big screens
- Latest version
- v26.9.1
- Oct 23, 2026
- Duo in release notes
- Not yet
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.
Apple named it in its iPhone Duo launch roundup on October 22: it tracks multiple chats while you focus on one conversation.
In Split View
iPhone Duo is the first iPhone that can show two apps side by side, and every app takes part — including KakaoTalk. 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
- Adaptive layoutRearranges into sidebars or multiple panes on the inner display instead of just stretching.
Evidence & history
Apple,
Developers bring incredible new app experiences to iPhone Duo (Apple Newsroom)
Apple says it tracks multiple chats while you focus on one conversation.
App build,
Version 26.9.1 is built with the iOS 27.1 SDK
Apps built with the iOS 27.1 SDK or later can use the whole inner display.
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 → Built for Duo — Named in Apple’s iPhone Duo launch roundup
Latest release notes
Version 26.9.1 · Oct 23, 2026
● You can now apply various text styles to your messages. : Try bold, italic, strikethrough, and list formatting. ● Get suggestions for mini emoticon combos for quick use. : Tap a combo you like in the Mini combo tab to send it. ● See more with ease with the improved interface for larger screens. : View the list and content together. ● You can now register your phone as a secondary device. : Register when you log in. (Some features may be unavailable on secondary devices.)
Questions
Does KakaoTalk work on iPhone Duo?
Yes. KakaoTalk is built for iPhone Duo — it runs full screen on the 7.6-inch inner display and adapts its layout for the fold.
Does KakaoTalk 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 KakaoTalk 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.