Games v38.666.2
Does Melon Sandbox x Poppy Playtime work on iPhone Duo?
It works, but with black bars. Melon Sandbox x Poppy Playtime 38.666.2 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 38.666.2, read Oct 27, 2026
- iPad version
- Yes
- Layout already handles big screens
- Latest version
- v38.666.2
- Oct 26, 2026
- Duo in release notes
- Not yet
About Melon Sandbox x Poppy Playtime
Melon Sandbox x Poppy Playtime is made by Payge Ltd and first came out on the App Store in April 2022. It has 143,140 ratings on the US App Store, averaging 4.5 stars. Version 38.666.2 came out on Oct 26, 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, Melon Sandbox x Poppy Playtime is #100 of them.
From its App Store listing:
Melon Sandbox: Ultimate Sandbox of Chaos! Welcome to Melon Sandbox, a thrilling sandbox game where you unleash your creativity through brutal experiments with realistic ragdoll physics! No limits, no rules—just pure destructive fun! Melon Sandbox x Poppy Playtime™: Halloween Collaboration! This Halloween, Melon Sandbox collaborates with Poppy Playtime for a special Halloween event! Enter a spooky …
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 Melon Sandbox x Poppy Playtime. 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 38.666.2 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 38.666.2 · Oct 26, 2026
Update 38.666 — Melon Sandbox x Poppy Playtime™ Our spooky but cute crew is here for Halloween! • Meet the big and scary Prototype! • Play with your favorites: Huggy Wuggy, Kissy Missy, and more • Try the GrabPack and swap its hands • Dress up in new costumes • Roll dice, complete tasks, and collect rewards • Compete for top spots on the event leaderboard and win prizes • Collect free event pass rewards — and even more from the premium track ™ & © 2021–2026 Mob Entertainment, Inc.
Questions
Does Melon Sandbox x Poppy Playtime work on iPhone Duo?
It works, but with black bars. Melon Sandbox x Poppy Playtime 38.666.2 is built with the iOS 26.2 SDK, so iPhone Duo runs it in a phone-sized window on the inner display.
Does Melon Sandbox x Poppy Playtime 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 Melon Sandbox x Poppy Playtime 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 Melon Sandbox x Poppy Playtime 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 Melon Sandbox x Poppy Playtime 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 Melon Sandbox x Poppy Playtime within about a day of its release and update this page.
What can I do about the black bars until then?
Use Melon Sandbox x Poppy Playtime 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.