A Markdown reader that opens as a two-page book, with the hinge as its spine
Does MarkRead - Markdown Reader work on iPhone Duo?
Yes. MarkRead - Markdown Reader's App Store page says it supports iPhone Duo, so the update is out. FoldHunt's editor hasn't seen it running yet.
- App Store confirmedThe developer, in the release notes for version 1.1.0 (released October 10, 2026), "Made for iPhone Duo": a two-page spread on the open screen, a side rail on the cover, and a reading stand when half open. There are no pictures of it on the Duo yet. The App Store seller is 佳奇 袁 (id 6803164224).
Adapted for the fold
We're waiting on details of exactly what MarkRead - Markdown Reader changes for the fold. Are you the developer? Tell us.
About MarkRead - Markdown Reader
MarkRead reads Markdown files, scrolled or laid out as pages. Version 1.1.0 is made for iPhone Duo, the developer says. Open and held in landscape, two pages meet at the hinge like a book, and half open the shadow at the spine deepens with the angle while the text stays still. Closed, the controls tuck into a side rail and marks along the edge jump through the outline. Stood half open on a table, text fills the top half with controls below. 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 release notes for version 1.1.2 (released October 23, 2026) mention iPhone Duo: "Made for iPhone Duo: unfold it and it's an open book, with the hinge as its spine."
App version: 1.1.2.
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?
Add the badge to your site or press kit. It links back to this page, where fans can upvote you.
<a href="https://foldhunt.com/apps/markread/"><img src="https://foldhunt.com/badges/featured-on-foldhunt.svg" alt="Featured on FoldHunt" width="220" height="54"></a>Need to update the listing? Email the editor.
Sources: MarkRead - Markdown Reader on the App Store (apps.apple.com)