Games v3.1.1
Does Jewel Coloring work on iPhone Duo?
It works, but with black bars. Jewel Coloring 3.1.1 is built with the iOS 26.2 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 26.2 SDK
- Version 3.1.1, read Oct 25, 2026
- iPad version
- Yes
- Layout already handles big screens
- Latest version
- v3.1.1
- Sep 21, 2026
- Duo in release notes
- Not yet
About Jewel Coloring
Jewel Coloring is made by Ta Ta Game Technology Limited and first came out on the App Store in February 2026. It has 53,873 ratings on the US App Store, averaging 4.9 stars. Version 3.1.1 came out on Sep 21, 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, Jewel Coloring is #139 of them.
From its App Store listing:
Jewel Coloring: Sparkle & Create with Pixel Art Puzzles Enter a vibrant world of glowing jewels where creativity and puzzle-solving come together in perfect harmony! Designed for easy, relaxing fun, this one-of-a-kind experience combines color sorting, pixel art creation, and satisfying casual gameplay all in one. With smooth, user-friendly controls and levels that gently grow more engaging, it’s …
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 Jewel Coloring. 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 3.1.1 is built with the iOS 26.2 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 26.2 SDK
Latest release notes
Version 3.1.1 · Sep 21, 2026
Thank you to all our players for your support! We adjusted the difficulty of the levels and added more temporary slots during the early stages. We also fixed issues with the display of some levels and game performance. We’ll continue improving the game to bring you an even better experience.
Questions
Does Jewel Coloring work on iPhone Duo?
It works, but with black bars. Jewel Coloring 3.1.1 is built with the iOS 26.2 SDK, so iPhone Duo runs it in a phone-sized window on the inner display.
Does Jewel Coloring 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 Jewel Coloring 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 Jewel Coloring 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 Jewel Coloring 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 Jewel Coloring within about a day of its release and update this page.
What can I do about the black bars until then?
Use Jewel Coloring 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.