Game emulator whose library reflows for the cover, open flat, standing and half-folded.
Does Delta work on iPhone Duo?
According to its developer, yes. FoldHunt's editor hasn't checked Delta on iPhone Duo yet, so it's listed as a claim.
- Developer claimedRiley Testut, on Mastodon (mastodon.social), showing Delta's library in the iPhone Duo simulator. The App Store seller is Yvette Testut (Testut Tech).
Adapted for the fold
- Closed · Outer display
Three columns on the cover
Closed, the game library shows three columns of box art, with settings, add and search in the side bar.
- Open · Inner display
Wider grid open flat
Open flat and turned sideways, the library spreads to four columns.
- Book · Partly folded
Recently played on a half fold
Half-folded like a laptop, the library shows three columns under Recently Played.
About Delta
Delta is Riley Testut’s game emulator. In a Mastodon post Riley shows its game library in the iPhone Duo simulator in four shapes: three columns on the closed cover, four columns open flat, two rows of five when the phone stands as a tent, and three columns when it is half-folded like a laptop. Riley is still deciding whether the page control belongs in the side bar, and the controller skins still need moving off the crease.
Evidence reviews
What we checked, when, and what the evidence establishes. Each record preserves the support label at that check.
· Developer media reviewed
Developer claimed · iphone-duo
Read the developer Mastodon post and inspected its first iPhone Duo Simulator screenshot, showing a three-column game library on the cover.
Poses shown: Closed. These are observations of the evidence, not a test of every interaction.
App version: Not recorded in this evidence. Environment: Developer-provided iPhone Duo Simulator screenshot, iOS 27.1.
A simulator screenshot documents the library layout; it does not establish gameplay, transition behaviour or a tested app version.
View reviewed evidence ↗
On the ideas wall
All ideas
Delta: a game library that reflows for every Duo pose
by Riley Testut
Riley Testut's game emulator in the Duo simulator. The library grid changes with each pose: three columns on the cover, four open flat, two short rows standing as a tent, three half-folded like a laptop. The controller skins come next.
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Sources: Riley Testut on Mastodon (mastodon.social) · Delta on the App Store (apps.apple.com)
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