How to use Split View on iPhone Duo

iPhone Duo can run two apps side by side on its 7.6-inch inner display using Split View, bringing true split-screen multitasking to iPhone. You can open two different apps together, use two windows from the same supported app, and save frequently used combinations as app pairs.

Split View works when iPhone Duo is open in landscape, with both apps sharing the screen equally. It is useful for combinations such as Messages and Photos, Safari and Notes, or Mail and Files.

The feature is part of the iPhone Duo-specific multitasking experience in iOS 27.1. The Apple Post has also covered the release of iOS 27.1 for iPhone Duo and the wider software changes designed around the foldable display.

How to open two apps in Split View on iPhone Duo

1. Open iPhone Duo so the inner display is in landscape.
2. Open the first app you want to use.
3. Swipe up from the bottom of the screen, pause in the center, then continue dragging the current app toward the left or right side.
4. When the Home Screen appears beside it, tap the second app you want to open. You can also choose an app from App Library.

There is a second way to start Split View directly from the Home Screen: touch and hold an app icon, tap Open in Split View, then choose the second app.

How to swap apps from left to right in Split View

To move one of the open apps to the opposite side, swipe up from the bottom of that app, pause in the center, then drag it across to the other side of the display.

How to open two windows from the same app

Apps that support multiple windows can also appear twice in Split View. Apple lists Mail, Notes, Safari and Files among the supported examples.

1. Open the supported app in Split View.
2. Go to the Home Screen or App Library and tap the same app icon again.
3. A second window from that app will open beside the first.

How to save an app pair on iPhone Duo

If you regularly use the same two apps together, iPhone Duo can pair them so opening either one automatically opens the other alongside it.

1. Open the two apps you want in Split View.
2. Tap the divider between the two apps.
3. The apps are now paired and will open together the next time you launch either one.

To unpair them, drag the center divider all the way to the left or right edge of the screen.

How to exit Split View on iPhone Duo

To return one app to full screen, drag the divider in the center all the way to either edge. To leave both apps and return to the Home Screen, swipe up from the middle of the display.

Apple documents Split View and app pairing in the iPhone User Guide. For a broader look at the foldable, The Apple Post’s complete iPhone Duo guide covers its displays, cameras, software and other features.