Fold the ink sheet shut, rub the cover, then reopen it to reveal a print
Does InkBlot Duo work on iPhone Duo?
Yes, the developer says so: closing the Duo folds the ink sheet, you rub the cover, and opening it peels the page and draws the ink into veins.
- App Store confirmedBala Technologies, the developer, in the App Store description (the current version is 1.1, released October 16, 2026), which says the app is made for iPhone Duo's hinge.
Adapted for the fold
- Closed · Outer display
Rub the folded sheet
Closed, the cover is the back of the sheet with the ink showing through, and rubbing it with your thumb pushes the ink around.
- Open · Inner display
Peel the print open
Open, the sheet fills the display with its crease on the fold. Opening the phone lifts the page and draws the ink into veins: long ones if you go slowly, short ones if you open it fast.
About InkBlot Duo
InkBlot Duo is a studio for folded ink blots: ink on paper, the page folded over, and the surprise when it opens. On the Duo, closing the phone folds the paper and opening it peels the print, and how fast you open it changes the veins in the ink. On other iPhones and iPads you fold the page on screen.
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: "MADE FOR THE DUO On iPhone Duo the sheet fills the inner display with its crease on the fold." (version 1.1, released October 16, 2026).
App version: 1.1.
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 ↗
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.
Is this your app?
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Sources: InkBlot Duo on the App Store (apps.apple.com) · InkBlot Duo in Apple's app lookup (itunes.apple.com) · InkBlot Duo's website (balatechnologies.site)
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