Books open across the fold, with the page above the controls when half-folded
Does Duri: Book & PDF Reader work on iPhone Duo?
Yes, the developer says so: one page closed, a two-page spread open, and the page above the controls when half-folded.
- App Store confirmedNeeraj Sharma, the developer, in the App Store description, which describes the open and half-folded layouts; the release notes for version 1.0.1 (released October 15, 2026) mention page numbers corrected in every Duo position. The developer's site describes a single page when closed.
Adapted for the fold
- Closed · Outer display
Keep reading when closed
Closed, you are back to one page, at the same sentence.
- Open · Inner display
A spread across the fold
Open, a book lies across both screens with its spine on the fold, and the library and contents use both pages.
- Book · Partly folded
The page above the controls
Half-folded, the page stands above the fold and the controls sit below, so it reads on a table by itself.
About Duri: Book & PDF Reader
Duri reads ebooks, PDFs and comics. Closed, it shows one page. Open, a book lies across both screens as a two-page spread. Half-folded, the page stands above the controls, so it reads on a table by itself.
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 1.0.1 (released October 15, 2026) mention iPhone Duo: "The page number and chapter name are right after turning into a new chapter, and on iPhone Duo in every position."
App version: 1.0.1.
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 ↗
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Sources: Duri on the App Store (apps.apple.com) · Duri's website, with the open and closed reading layouts (duri.neeraj.ca)
More for iPhone Duo
NAVER SERIES
NAVER WEBTOON
Korean webtoons and web novels, to read on the larger display of the open Duo
Launch partner: Named by Apple in its Newsroom article of October 22, 2026, on apps optimized for iPhone Duo. The App Store release notes for version 26.102.0 (released October 22, 2026) don't mention the Duo.
- Open
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Simulator verified: Jihoon Suh, on the Vertically Verse iPhone Duo page (vertically.works), with captures from the Xcode 27.1 simulator. The App Store seller is Jihoon Suh.
- Closed
- Open
- Book
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Audiobook player whose reader shows two facing pages on the open Duo
Simulator verified: Donovan Montoya, the developer, merged Duo support into the app's public code (github.com) and later crease fixes with Duo simulator screenshots of the reader (github.com); the changelog listed it for version 1.3.0. The App Store version, 1.3.1 (released October 19, 2026), does not mention the Duo in its release notes.
- Open
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