WarnerMedia Global Digital Services, LLC
Entertainment v22.0.0
Does HBO Max work on iPhone Duo?
Yes. HBO Max 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
- v22.0.0
- Nov 3, 2026
- Duo in release notes
- Mentioned
About HBO Max
HBO Max is made by WarnerMedia Global Digital Services, LLC and first came out on the App Store in May 2023. It's #18 on today's US App Store top charts. It has 5,850,050 ratings on the US App Store, averaging 4.9 stars. Version 22.0.0 came out on Nov 3, 2026 and needs iOS 16.4 or later. It's free to download. Among the 45 video & streaming apps we track on the US App Store, 22 already fill the inner display, 7 are partly adapted and 15 still show black bars. By number of ratings, HBO Max is #4 of them.
From its App Store listing:
The most talked about shows and movies featuring the worlds of HBO, the DC Universe, Adult Swim, A24, and beyond. With HBO Max you'll get: • Access to thousands of TV shows and movies. • Exclusive, award-winning series that everyone's talking about — like the HBO Originals The Last of Us, Succession, The White Lotus, and House of the Dragon. • The latest hits from HBO, Harry Potter, DC, Warner Bro…
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 HBO Max. 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
Release notes,
Release notes for version 22.0.0
…ments, plus in-app updates to make the experience even better: - Liquid Glass - iPhone Duo compatibility Keep your app updated to enjoy the best streaming experience.
- : Not confirmed yet → Partly adapted — built with the iOS 27.0 SDK
- : Partly adapted → Built for Duo — release notes for 22.0.0 say it supports iPhone Duo
Latest release notes
Version 22.0.0 · Nov 3, 2026
This release brings bug fixes and performance improvements, plus in-app updates to make the experience even better: - Liquid Glass - iPhone Duo compatibility Keep your app updated to enjoy the best streaming experience.
Questions
Does HBO Max work on iPhone Duo?
Yes. HBO Max is built for iPhone Duo — it runs full screen on the 7.6-inch inner display and adapts its layout for the fold.
Does HBO Max 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 HBO Max 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.