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Jelly Busters: Puzzle Game app icon

Moon Active

Games v220000.1.211

Does Jelly Busters work on iPhone Duo?

It works, but with black bars. Jelly Busters 220000.1.211 is built with the iOS 26.5 SDK, so iPhone Duo runs it in a phone-sized window on the inner display.

Black barsFrom the app's buildLast checked
Illustration: app runs in a phone-sized window with black bars on both sides
Jelly Busters on the inner display — black bars

At a glance

Inner display (7.6″)
Black bars
Outer display (5.4″)
Works normally
Built with
iOS 26.5 SDK
Version 220000.1.211, read Nov 3, 2026
iPad version
Yes
Layout already handles big screens
Latest version
v220000.1.211
Nov 1, 2026
Duo in release notes
Not yet

About Jelly Busters

Jelly Busters is made by Moon Active and first came out on the App Store in January 2026. It's #82 on today's US App Store top charts. It has 10,856 ratings on the US App Store, averaging 4.8 stars. Version 220000.1.211 came out on Nov 1, 2026 and needs iOS 13.0 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, Jelly Busters is #189 of them.

From its App Store listing:

Drop into the smoothest skatepark in town with the Jelly Busters crew, a squad of bouncy jellies who live to skate, color shoot, and bust their way through walls of cubes. Every run starts with a simple push on your board, a quick aim, and a clean shot as you send your jelly flying into a glowing, colorful puzzle blast of cubes hiding a secret picture and image below. Jelly Busters adds a fun, ska…

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.

Why some apps show black bars on iPhone Duo

In Split View

iPhone Duo is the first iPhone that can show two apps side by side, and every app takes part — including Jelly Busters. 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.

How Split View works on iPhone Duo

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

  1. App build,

    Version 220000.1.211 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 220000.1.211 · Nov 1, 2026

We are incredibly excited to announce the official launch of Jelly Busters! Drop into the coolest skatepark in town and experience a puzzle game that is as colorful and beautiful as it is satisfying. With soft ASMR pops, glowing hues, and hidden artistic masterpieces to destroy, every run is a relaxing yet thrilling ride...grab your board to join the crew and start busting!

Questions

Does Jelly Busters work on iPhone Duo?

It works, but with black bars. Jelly Busters 220000.1.211 is built with the iOS 26.5 SDK, so iPhone Duo runs it in a phone-sized window on the inner display.

Does Jelly Busters 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 Jelly Busters 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 Jelly Busters 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 Jelly Busters 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 Jelly Busters within about a day of its release and update this page.

What can I do about the black bars until then?

Use Jelly Busters 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.