Retro music player for your own music and streaming libraries.
The directory for Apple’s foldable iPhone
Apps that unfold
with your iPhone Duo.
Every App Store app runs on iPhone Duo — only some are made for it. We find them, test the claims and tell you exactly what each one does with the fold.
- apps listed
- 107
- built for Duo
- 44
- categories
- 14
- last updated
Built for Duo
Apps that change when you fold, unfold or prop the phone half-open.
Calm to-do list and paper-style planner that sorts tasks by how long they take
Motorsport calendar, results and live timing in your own time zone
A classical piano rhythm game that plays across the iPhone Duo's hinge
A water tracker with two-column layouts on the open iPhone Duo
An RSS reader with built-in summaries that reshapes as the iPhone Duo folds
Football scores, stats and news, with a list-and-detail view when unfolded
Task and project management with layouts for both iPhone Duo displays
Drawing and painting app with custom brushes and unlimited layers
Three tiers. One honest label.
An app can fill the screen and still ignore the fold. Every listing gets one of three tiers, with the source and date of its check.
Built for Duo
Does something specific with the hardware: a different layout folded and unfolded, Split View, the half-open position or the outer display.
44 apps ›
Adapted
Rebuilt with the iOS 27 SDK or later, so it resizes to the 7.6-inch inner display instead of showing black borders. With the iOS 27.1 SDK it can use the whole screen.
39 apps ›
Compatible
Runs unchanged. It looks normal on the outer display and keeps its phone layout, with black borders, when unfolded.
24 apps ›
Recently added
Fresh listings, reviewed by hand.
A vintage typewriter for your notes, with real sounds, papers and wax seals
A classical piano rhythm game that plays across the iPhone Duo's hinge
A water tracker with two-column layouts on the open iPhone Duo
An RSS reader with built-in summaries that reshapes as the iPhone Duo folds
A tabbed Flickr photo browser with grid views, maps and slideshows
Task and project management with layouts for both iPhone Duo displays
Browse by category
Launch tracker
Which apps Apple and developers have confirmed for iPhone Duo — with sources.
Netflix
Zoom
Slack
Detail
Final Cut Camera+101 Developer announcedComing soon
More than apps
Widgets for the outer display and wallpapers sized for both screens are on the way.
Building for iPhone Duo?
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iPhone Duo apps: FAQ
Which apps are optimized for iPhone Duo?
Apple named Netflix, Zoom, Slack and Detail as day-one partners and does not publish a wider list. We track apps in three tiers: Built for Duo (they use the fold, Split View or the outer display), Adapted (rebuilt with the iOS 27 SDK or later to fill the inner display) and Compatible (they run unchanged).
Do all iPhone apps work on iPhone Duo?
Yes. Every App Store app installs and runs on iPhone Duo. Apps built with the iOS 26 SDK or earlier look normal on the outer display but keep their phone layout when unfolded, with black borders on the 7.6-inch inner screen. Apps rebuilt with the iOS 27 SDK resize to fill most of it, and with the iOS 27.1 SDK or later all of it.
Does the App Store show which apps are optimized for iPhone Duo?
No. The App Store has no iPhone Duo filter or badge, so there is no official way to browse optimized apps. That is why this directory exists: every app is listed by hand with the date and method of its check.
Why do some apps have black bars on iPhone Duo?
Apps built with the iOS 26 SDK or earlier keep their phone layout on the inner display, so they sit in the middle with unused space around them. Once the developer rebuilds the app with the iOS 27 SDK or later, it resizes to fill the screen.