Games v70.648
Does Brawl Stars work on iPhone Duo?
It works, but with black bars. Brawl Stars hasn't been updated for iPhone Duo's inner display yet, so it runs in a phone-sized window.
At a glance
- Inner display (7.6″)
- Black bars
- 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
- v70.648
- Nov 3, 2026
- Duo in release notes
- Not yet
About Brawl Stars
Brawl Stars is made by Supercell and first came out on the App Store in December 2018. It's #86 on today's US App Store top charts. It has 3,141,693 ratings on the US App Store, averaging 4.7 stars. Version 70.648 came out on Nov 3, 2026 and needs iOS 15.5 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, Brawl Stars is #8 of them.
From its App Store listing:
Fast paced 3v3 & 5v5 MOBA and Battle Royale made for mobile! Play online with friends or solo across a variety of PvP arena game modes in under three minutes. Unlock and upgrade dozens of Brawlers with powerful super abilities, star powers and gadgets! Collect unique skins to stand out and show off. Battle in a variety of mysterious arena locations within the MOBA Brawliverse! Brawl Stars is free …
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 Brawl Stars. 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 69.414 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 70.648 · Nov 3, 2026
UPDATE 70: RANKED REFRESH & BRAWLIDAYS Nov 2026 - Dec 2026 ∙ A refined ranked experience for solo players, upgraded with NEW cosmetics, alongside improved matching and pick/ban options. ∙ 3 NEW BRAWLERS! The royal couple, Ruby & Rey, who are more powerful when played together! ∙ Thunder Frogs, a trio of amphibious magicians who put on a SHOCKING performance! ∙ Extra Pin slots, new game modes, Hypercharges, Buffies, and more! ∙ Brawl Pass Season 56: Brawl Vice ∙ Brawl Pass Season 57: Brawlidays
Questions
Does Brawl Stars work on iPhone Duo?
It works, but with black bars. Brawl Stars hasn't been updated for iPhone Duo's inner display yet, so it runs in a phone-sized window.
Does Brawl Stars 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 Brawl Stars 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 Brawl Stars 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 Brawl Stars 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 Brawl Stars within about a day of its release and update this page.
What can I do about the black bars until then?
Use Brawl Stars 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.