A board of tally counters: half-folded, counts sit above the fold and the buttons below
Does KeepCount work on iPhone Duo?
Yes, since version 1.8 on October 12, 2026, and seen in a simulator screenshot: half-folded on a table, the counts sit above the fold and the buttons below. Closed or open flat, the usual board.
- Simulator verifiedTyler Hillsman, the developer, in a submission to FoldHunt on October 17, 2026, with an unframed screenshot of the app in the iPhone Duo simulator in the press kit (keepcount.app). The App Store seller is 1881 Digital, LLC. The release notes for version 1.8 (released October 12, 2026) say KeepCount now adapts to the iPhone Duo's inner and outer displays, with a tabletop layout when it's partly folded.
Adapted for the fold
- Book · Partly folded
A counting table
Half-folded like a laptop on a table, the whole board of counts sits on the upper half, and a card with −1 and +1 for each counter, with undo, redo and settings, fills the lower half. Long names wrap in full.
- Closed · Outer display
The board on the cover
Closed, the board of counters is laid out for the cover, and numbers shrink to fit rather than lose digits.
- Open · Inner display
The usual board, open flat
Open flat, you get the familiar board of counters across the whole display.
About KeepCount
KeepCount turns an iPhone or iPad into a colorful board of counters for game scores, workouts, attendance, stock, knitting rows and habits. Count up, count down or type an exact number, with a step from 1 to 100, undo and redo, and a Home Screen widget you tap to count. Three boards are free; KeepCount Pro adds unlimited boards, a full history of changes and no ads. Counting works offline, and your boards stay on your device.
Version 1.8, out on October 12, 2026, lays the board out for the iPhone Duo’s cover and open display. Fold the phone partway and stand it on a table, and the whole board of counts sits above the fold with matching buttons for each counter below. Open flat, it’s the familiar board. The developer’s press kit has a screenshot of the tabletop layout from the iPhone Duo simulator.
Evidence reviews
What we checked, when, and what the evidence establishes. Each record preserves the support label at that check.
· Simulator screenshots reviewed
Simulator verified · iphone-duo
Checked the unframed iPhone Duo screenshot in the developer's press kit: 2007 × 2853 pixels, the size of the iPhone Duo simulator's open display held upright. It shows the tabletop layout: a Game Night board of four counts on the upper half, and a −1 and +1 card for each player, with undo, redo and settings, on the lower half.
Poses shown: Book. These are observations of the evidence, not a test of every interaction.
App version: Not recorded in this evidence. Environment: iPhone Duo simulator.
One still screenshot with no app or Xcode version, of the tabletop layout only: the cover and the board open flat aren't shown. The press kit's framed version puts the same screenshot on a picture of a half-folded Duo. No build was tested.
View reviewed evidence ↗
Related guides
iPhone Duo poses: closed, open, book, standing and Split View
A plain-language guide to the ways you will hold iPhone Duo, what the phone itself does in each, and the apps and ideas that make the most of them. For anyone buying one, and for anyone building for it.
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.
Is this your app?
Add the badge to your site or press kit. It links back to this page, where fans can upvote you.
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Sources: KeepCount press kit, with an iPhone Duo screenshot (keepcount.app) · KeepCount on the App Store (apps.apple.com)
More for iPhone Duo
Calc Pro - The Best Calculator
Panoramic Software Inc.
Ten calculators and converters, with the tape of results beside the calculator when open
Simulator verified: Panoramic Software Inc., the developer, in a submission to FoldHunt on October 18, 2026, and in the App Store release notes for version 7.0.6 (released October 12, 2026), which describe the closed and open layouts. The app's page on the developer's website has pictures of both on the iPhone Duo.
- Closed
- Open
Sticky Widgets
Tyler Hillsman / 1881 Digital, LLC
Sticky notes as widgets, with a larger library and side-by-side editing on the Duo
Simulator verified: Tyler Hillsman, the developer, in the App Store release notes for version 5.4.0 (released October 13, 2026), which add iPhone Duo support with a larger library and side-by-side editing, and in a submission to FoldHunt on October 17, 2026, with an unframed screenshot of the app in the iPhone Duo simulator in the press kit (stickywidgets.app). The App Store seller is 1881 Digital, LLC; the App Store pictures show ordinary iPhones and iPads.
- Open
KeyboardKit
Kankoda Sweden AB
Keyboard settings that turn into a sidebar and a page when the Duo opens
Simulator verified: Daniel Saidi of Kankoda, in a KeyboardKit blog post with simulator screenshots, closed, half-folded and open (keyboardkit.com). The App Store seller is Kankoda Sweden AB (id 1568444977). The release notes for version 4.8.0 (released October 9, 2026): "This version adds a new split-screen design for the iPhone Duo and the iPad." On October 10, 2026, Daniel posted on X that all of Kankoda's apps are ready for the Duo's launch (@danielsaidi on X).
- Closed
- Book
- Open