Games v4.10.1
Does Block Craft 3D work on iPhone Duo?
It works, but with black bars. Block Craft 3D 4.10.1 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 4.10.1, read Oct 30, 2026
- iPad version
- Yes
- Layout already handles big screens
- Latest version
- v4.10.1
- Oct 29, 2026
- Duo in release notes
- Not yet
About Block Craft 3D
Block Craft 3D is made by Wildlife Studios and first came out on the App Store in July 2015. It has 893,194 ratings on the US App Store, averaging 4.6 stars. Version 4.10.1 came out on Oct 29, 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, Block Craft 3D is #33 of them.
From its App Store listing:
Craft and grow your own village or build freely in an unlimited open world! + Craft anything you like! + Fill the world with your creations! + Build your village! + Help keeping your people happy! Download now and don't miss amazing updates! ● What our players are saying - This is a great game. Easy to play and an easy way to kill some time in between appointments. A must have. I spend hours playi…
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 Block Craft 3D. 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 4.10.1 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 4.10.1 · Oct 29, 2026
Bugfixes and Optimizations
Questions
Does Block Craft 3D work on iPhone Duo?
It works, but with black bars. Block Craft 3D 4.10.1 is built with the iOS 26.2 SDK, so iPhone Duo runs it in a phone-sized window on the inner display.
Does Block Craft 3D 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 Block Craft 3D 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 Block Craft 3D 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 Block Craft 3D 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 Block Craft 3D within about a day of its release and update this page.
What can I do about the black bars until then?
Use Block Craft 3D 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.