A drawing app for the Duo: draw on one half, close the phone, open it to a mirrored print
Does FoldSketch for Duo work on iPhone Duo?
Yes, the developer says so: FoldSketch is made for the iPhone Duo with iOS 27.1 or later. Draw on one half, close the phone and reopen it to find the strokes mirrored.
- App Store confirmedThe developer, in the App Store description for version 1.0.0: drawing needs an iPhone Duo with iOS 27.1, and closing the phone fully and reopening it makes a mirrored imprint. The only App Store image is a screen on an ordinary iPhone explaining the Duo requirement. There are no pictures of it on the Duo yet.
Adapted for the fold
- Open · Inner display
Draw and mirror
The developer says you choose a half to draw on, add strokes, close the phone completely and reopen it to see the mirrored result.
About FoldSketch for Duo
FoldSketch for Duo makes symmetrical prints by folding: draw on one half of the open display, close the phone, and open it again to find the strokes mirrored. It also has tracing guides, paper and palette choices, and PNG export.
Drawing needs an iPhone Duo with iOS 27.1, the description says, though the App Store lists iOS 27.0 as the minimum; on an ordinary iPhone the app only explains why drawing is unavailable. There are no pictures of it on the Duo yet.
Evidence reviews
What we checked, when, and what the evidence establishes. Each record preserves the support label at that check.
· App Store page reviewed
App Store confirmed · iphone-duo
The App Store description mentions iPhone Duo: "Requires iPhone Duo with iOS 27.1 or later for drawing." (version 1.0.0, released October 13, 2026).
App version: 1.0.0.
Store text only: we haven't seen the app running, and the store page doesn't show how each pose is used.
View reviewed evidence ↗· Developer statement reviewed
Developer claimed · iphone-duo
Read the maker's App Store description of drawing on one half, then closing and reopening the Duo to make a mirrored imprint. The App Store image is an ordinary iPhone screen explaining the Duo requirement.
App version: 1.0.0.
No image, recording or build of it running on a Duo was available. The description requires iOS 27.1 for drawing, though the App Store's compatibility information says iOS 27.0. The folding interaction remains the developer's claim.
View reviewed evidence ↗
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Sources: FoldSketch for Duo on the App Store (apps.apple.com)
More for iPhone Duo
RoomGenie: AI Room Design
Muhammad Faiz Masroor
Repaint a 3D room on the cover, half-folded or open
Simulator verified: RoomGenie (@RoomGenieApp) posted the 3D room on the Duo simulator half-folded, closed and open (@RoomGenieApp on X).
- Book
- Closed
- Open
Meshing
Rudrank Riyam
Gradient maker, with the gradient on one side and its tools on the other when open
Simulator verified: Rudrank Riyam, the developer, in a Bluesky post with a screenshot of Meshing in the iPhone Duo simulator (bsky.app). Version 3.0 (released October 7, 2026) adds "a split workspace on iPad and the expanded iPhone Duo display", its release notes say.
- Open
Papelle
Paolo Villanueva
Greeting cards whose reveal follows how far you open the Duo
App Store confirmed: Paolo Villanueva, the developer, in two submissions to FoldHunt on October 18 and 19, 2026, with posts on X and a reveal video on YouTube, and in the App Store description, which has a "Made for iPhone Duo" section. Papelle came out on October 21, 2026, and the release notes for version 1.0.1 read "Bug Fixes for iPhone Duo".
- Closed
- Book
- Open