A retro-game launcher that lists the iPhone Duo among devices that can run Mario Galaxy
Does SUMEE! work on iPhone Duo?
Yes, the developer says so, but only as a compatibility note: version 2.9.7 lists iPhone Duo among the devices that can run Mario Galaxy. No fold layout is described.
- Developer claimedGetzemani Cruz Garcia, the developer, in the App Store release notes for version 2.9.7 (released September 23, 2026), which list iPhone Duo among the newer devices that can run Mario Galaxy in the app. That is a compatibility note, not a description of a fold-aware layout.
Adapted for the fold
We're waiting on details of exactly what SUMEE! changes for the fold. Are you the developer? Tell us.
About SUMEE!
SUMEE! turns your iPhone into a portable gaming system for organizing and playing compatible retro games from systems such as the GameCube, Nintendo DS, Game Boy Advance, SNES and Nintendo 64. It’s built for handheld and big-screen play, with game controller support, HDMI and AirPlay output, and a dock mode for the TV.
Version 2.9.7 names iPhone Duo among the newer devices that can run Mario Galaxy in the app.
Related guides
The best iPhone Duo apps so far (October 2026)
The apps worth installing now that iPhone Duo is on sale, from the apps Apple named as launch partners to indie apps whose developers have shown a real iPhone Duo layout, picked for what they do when you open the phone.
Do your apps work on iPhone Duo? What happens before they're updated
Every iPhone app opens on iPhone Duo, but only updated ones fill the inner display. What an app looks like before its developer adapts it, how to tell which are ready, and which popular apps have said so.
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Sources: SUMEE! on the App Store (apps.apple.com) · SUMEE! version history on the developer's site (sumee.online)
More for iPhone Duo
Paper & Grain
Jeremy Collins
An origami puzzle game where you fold the Duo to fold the paper and close it to crease
Simulator verified: Jeremy Collins, the developer, in a submission to FoldHunt on October 21, 2026, saying the Duo's seam works as a crease and the Guidebook can sit beside the sheet in tabletop or open. The Paper & Grain page on the developer's site has iPhone Duo simulator screenshots and an 18-second overview of the Duo folding the paper. The App Store description says the game is optimized for iPhone Duo, with optional folding along the device seam on iOS 27.1 or later. Version 1.0 was released October 19, 2026.
- Open
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- Closed
Keep It Shut
Tenth Room Studio
A horror game where the Duo is a hotel room door: fold it shut, open a crack to peek
Simulator verified: Tenth Room Studio, the one-person studio of Kane Vu, in a submission to FoldHunt on October 20, 2026. The press kit (tenthroomstudio.com) has unframed iPhone Duo screenshots at the sizes of the simulator's open display (2853 × 2007) and cover (1398 × 2034). The game is coming soon to the App Store; its release date is to be announced.
- Closed
- Book
- Open
Tapete: 2 Player Board Games
Óscar de la Torre
Fourteen board games for two on one phone, where the hinge is part of the board
Simulator verified: Óscar de la Torre, the developer, in emails to FoldHunt on October 12, 2026 and a week later, saying the game was built with Xcode 27.1 and tested in all three postures in the iPhone Duo simulator. The site's 28-second preview is captioned "recorded on the iPhone Duo simulator". The App Store description says the game is compatible with iPhone Duo. Version 1.3 (released October 18, 2026) adds 16 languages.
- Open
- Book
- Closed