Games v3.5.2770
Does Coin Master work on iPhone Duo?
Mostly. Coin Master 3.5.2770 is built with the iOS 27.0 SDK, so it fills most of iPhone Duo's inner display but leaves some space unused.
At a glance
- Inner display (7.6″)
- Partly adapted
- Outer display (5.4″)
- Works normally
- Built with
- iOS 27.0 SDK
- Version 3.5.2770, read Nov 3, 2026
- iPad version
- Yes
- Layout already handles big screens
- Latest version
- v3.5.2770
- Nov 2, 2026
- Duo in release notes
- Not yet
About Coin Master
Coin Master is made by Moon Active and first came out on the App Store in December 2010. It's #70 on today's US App Store top charts. It has 1,380,502 ratings on the US App Store, averaging 4.8 stars. Version 3.5.2770 came out on Nov 2, 2026 and needs iOS 15.0 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, Coin Master is #26 of them.
From its App Store listing:
Join your Facebook friends and millions of players around the world for prize-winning spins as you build village after village on your journey to the top! Do you have what it takes to be the next Coin Master? Get ready to team up with friends for thrilling expeditions or join forces with a crew of fellow players. You’ll always find a new adventure with an ever-changing lineup of special events, pa…
On the inner display
Built with the iOS 27 SDK, the app extends across most of the inner display, but some areas stay empty. It's usable, just not polished.
In Split View
iPhone Duo is the first iPhone that can show two apps side by side, and every app takes part — including Coin Master. 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 3.5.2770 is built with the iOS 27.0 SDK
Apple gives apps built with the iOS 27.0 SDK more of the inner display, with some space left over.
- : Not confirmed yet → Partly adapted — built with the iOS 27.0 SDK
Latest release notes
Version 3.5.2770 · Nov 2, 2026
Thanks for playing Coin Master! In this version, we’ve implemented bug fixes & performance improvements. We have also implemented our new reward calendar feature - collect your daily rewards! Enjoy a world of fun, thrills, and huge rewards right at your fingertips. Invite your friends to play Coin Master & get your FREE REWARDS! We also recommend joining our community on Facebook, X, and Instagram for more fun & excitement. Enjoying Coin Master? Leave a review :)
Questions
Does Coin Master work on iPhone Duo?
Mostly. Coin Master 3.5.2770 is built with the iOS 27.0 SDK, so it fills most of iPhone Duo's inner display but leaves some space unused.
Does Coin Master 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 Coin Master 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 Coin Master 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 Coin Master 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 Coin Master within about a day of its release and update this page.
What can I do about the black bars until then?
Use Coin Master 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.