A retro emulator with the game above its controls when half-folded
Does RetroHandheld work on iPhone Duo?
Yes, the developer says so: version 3.0 of RetroHandheld puts the game and its controls on separate sides of the fold when the Duo is half-folded.
- Developer claimedThe developer, in the App Store release notes for version 3.0: half-folded, the game sits above its controls, or beside them when the Duo is turned the other way; unfolding keeps the same game running.
Adapted for the fold
We're waiting on details of exactly what RetroHandheld changes for the fold. Are you the developer? Tell us.
About RetroHandheld
RetroHandheld is a console emulator. Version 3.0 adds iPhone Duo support, the release notes say: half-folded, the game sits above its controls, or beside them when the phone is turned the other way, and unfolding keeps the same game running.
Related guides
The best iPhone Duo apps so far (October 2026)
The apps worth installing on day one, from Apple's four 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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More for iPhone Duo
NEOFOLD: Fold & Play
Gianfranco Amato
Three neon arcade games; folding switches between brick breaker, pinball and a duel
Developer claimed: The developer, on the NEOFOLD website and in the App Store description: closed, the cover plays Breaker; half-folded, Pinball; open, Duel. The website says folding pauses the game and asks before switching. The release notes for the current version, 1.0.3, list only fixes. Specific fold adaptations are not yet documented.
Rev Rush: Pixel Moto Runner
Marko Krulc
A one-tap motorbike runner that pauses while you fold
Developer claimed: The developer, in the App Store release notes for version 1.3.0 (released October 14, 2026) and an article on the game's website, with pictures labeled closed, open, book and laptop. The App Store seller is MARKO KRULC. Specific fold adaptations are not yet documented.
Netflix
Netflix, Inc.
Clips on the outer screen, cinema on the inner one, redesigned for iPhone Duo.
Launch partner: Named by Apple as an iPhone Duo launch partner.
- Closed
- Open
- Book
- Standing