Travel v71.1
Does Booking.com work on iPhone Duo?
Yes. Booking.com 71.1 is built with the iOS 27.1 SDK, so it can use iPhone Duo's whole inner display. We haven't seen Duo-specific features yet.
At a glance
- Inner display (7.6″)
- Full screen
- Outer display (5.4″)
- Works normally
- Built with
- iOS 27.1 SDK
- Version 71.1, read Nov 3, 2026
- iPad version
- Yes
- Layout already handles big screens
- Latest version
- v71.1
- Nov 2, 2026
- Duo in release notes
- Not yet
About Booking.com
Booking.com is made by Booking.com and first came out on the App Store in April 2010. It has 2,217,658 ratings on the US App Store, averaging 4.8 stars. Version 71.1 came out on Nov 2, 2026 and needs iOS 17.0 or later. It's free to download. Among the 19 travel & navigation apps we track on the US App Store, 7 already fill the inner display, 5 are partly adapted and 7 still show black bars. By number of ratings, Booking.com is #8 of them.
From its App Store listing:
Save on your next trip with the Booking.com app! Find great hotel or apartment deals and book in just a few minutes. You can also book flights, rental cars, and more through the app. - Book your whole trip in one app (accommodations, flights, car rentals, taxis and attractions) - Stay flexible with free cancellation (available at most properties) - 24/7 customer service in more than 40 languages -…
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.
In Split View
iPhone Duo is the first iPhone that can show two apps side by side, and every app takes part — including Booking.com. 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 build,
Version 71.1 is built with the iOS 27.1 SDK
Apps built with the iOS 27.1 SDK or later can use the whole inner display.
- : Not confirmed yet → Full screen — built with the iOS 27.1 SDK
Latest release notes
Version 71.1 · Nov 2, 2026
Thanks for using Booking.com! This update contains several bug fixes and performance improvements. Enjoy the latest and greatest version of our app.
Questions
Does Booking.com work on iPhone Duo?
Yes. Booking.com 71.1 is built with the iOS 27.1 SDK, so it can use iPhone Duo's whole inner display. We haven't seen Duo-specific features yet.
Does Booking.com 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 Booking.com 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.