Games v16.635.7
Does Clash Royale work on iPhone Duo?
It works, but with black bars. Clash Royale 16.635.7 is built with the iOS 26.5 SDK, so iPhone Duo runs it in a phone-sized window on the inner display.
At a glance
- Inner display (7.6″)
- Black bars
- Outer display (5.4″)
- Works normally
- Built with
- iOS 26.5 SDK
- Version 16.635.7, read Nov 1, 2026
- iPad version
- Yes
- Layout already handles big screens
- Latest version
- v16.635.7
- Oct 31, 2026
- Duo in release notes
- Not yet
About Clash Royale
Clash Royale is made by Supercell and first came out on the App Store in March 2016. It's #96 on today's US App Store top charts. It has 3,885,547 ratings on the US App Store, averaging 4.6 stars. Version 16.635.7 came out on Oct 31, 2026 and needs iOS 14.0 or later. It's free to download. Among the 238 games we track on the US App Store, 34 already fill the inner display, 9 are partly adapted and 187 still show black bars. By number of ratings, Clash Royale is #4 of them.
From its App Store listing:
Enter the Arena! Build your Battle Deck and outsmart the enemy in fast real-time battles. From the creators of CLASH OF CLANS comes a real-time multiplayer battle game starring your favourite Clash characters and more. Start battling against players from around the world! Clash Royale is free to download and play, however, some game items can also be purchased for real money (including random item…
On the inner display
Apps built with older SDKs are placed in a phone-sized safe area on a black background. Everything works; you just don't get the bigger screen.
In Split View
iPhone Duo is the first iPhone that can show two apps side by side, and every app takes part — including Clash Royale. 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 16.635.7 is built with the iOS 26.5 SDK
Apple runs apps built with the iOS 26 SDK or earlier in a phone-sized window on the inner display.
- : Not confirmed yet → Black bars — built with the iOS 26.5 SDK
Latest release notes
Version 16.635.7 · Oct 31, 2026
New Update: Playtime Is Over! • NEW Crown Series: Get ready to take competition to the next level! Coming this season! • NEW EVOLUTIONS: • Giant: After taking enough damage, he'll RAGE and leave a trail of it that boosts friendly troops! • Mirror: Copy any card with an Evolution and get its Evolved version! • Daily Puzzles: A fresh defensive puzzle every day! Got what it takes to solve it? • Bug fixes and improvements
Questions
Does Clash Royale work on iPhone Duo?
It works, but with black bars. Clash Royale 16.635.7 is built with the iOS 26.5 SDK, so iPhone Duo runs it in a phone-sized window on the inner display.
Does Clash Royale 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 Clash Royale 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.
Why does Clash Royale have black bars on iPhone Duo?
Apps built with the iOS 26 SDK or earlier run in a phone-sized window on the inner display, and iOS 27 builds can still leave some space empty. The bars disappear once the developer rebuilds the app with the iOS 27.1 SDK — you only need to update the app.
When will Clash Royale fill iPhone Duo's inner display?
When its developer releases an update built with the iOS 27.1 SDK or later. We read the SDK of every new version of Clash Royale within about a day of its release and update this page.
What can I do about the black bars until then?
Use Clash Royale on the outer display, where it works like on any iPhone, or put it in Split View next to another app on the inner display so less of the screen goes unused.