Games v1.24.0
Does Royal Cooking work on iPhone Duo?
It works, but with black bars. Royal Cooking 1.24.0 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 1.24.0, read Oct 26, 2026
- iPad version
- Yes
- Layout already handles big screens
- Latest version
- v1.24.0
- Aug 25, 2026
- Duo in release notes
- Not yet
About Royal Cooking
Royal Cooking is made by Matryoshka Games (CY) LTD and first came out on the App Store in May 2023. It has 183,375 ratings on the US App Store, averaging 4.7 stars. Version 1.24.0 came out on Aug 25, 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, Royal Cooking is #88 of them.
From its App Store listing:
Welcome to Royal Cooking — an exciting game where you’ll create the finest meals from world cuisines! Embark on a culinary journey as you explore restaurants featuring diverse flavors — from Italian pasta and French pastries to Asian noodles and Mexican tacos. Upgrade your kitchen, add flair to your dishes, and use top-quality ingredients to delight your guests with delicious food. COOK WITH PURPO…
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 Royal Cooking. 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 1.24.0 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 1.24.0 · Aug 25, 2026
Ready to cook, Chef? Behind the kitchen doors, the work never stopped: — Smoothed out the rough edges so nothing slows the service down. — Served up faster gameplay from the first tap to the last plate. — Added more delicious surprises to the menu. Update now and get back to the kitchen!
Questions
Does Royal Cooking work on iPhone Duo?
It works, but with black bars. Royal Cooking 1.24.0 is built with the iOS 26.2 SDK, so iPhone Duo runs it in a phone-sized window on the inner display.
Does Royal Cooking 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 Royal Cooking 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 Royal Cooking 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 Royal Cooking 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 Royal Cooking within about a day of its release and update this page.
What can I do about the black bars until then?
Use Royal Cooking 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.