A read-aloud app that opens like a book: the text on one page, the player on the other
Does Prismark work on iPhone Duo?
Yes, and seen in simulator screenshots: open, the text you're hearing sits on one page and the player on the other; closed, it keeps reading on the cover above a compact player.
- Simulator verifiedZachary Coleman, the developer, in a submission to FoldHunt on October 22, 2026. The press kit (zach-coleman.com) has unframed iPhone Duo screenshots at the sizes of the simulator's open display (2853 × 2007, and 2007 × 2853 upright) and cover (1398 × 2034). The App Store description has a "Prismark for iPhone Duo" section, and the release notes for version 1.0.1 (released October 22, 2026) say "Even better on iPhone Duo".
Adapted for the fold
- Open · Inner display
The text beside the player
Open, the text fills the left page with the sentence being read marked like a highlighter, and the player sits on the right with the chapter, progress and what's up next. Held upright, the text sits above the player.
- Book · Partly folded
Fold it like a book
Half-folded, the text and the player keep to their own pages, and folding the phone casts a subtle shadow across them, like closing a book, says the developer.
- Closed · Outer display
Keep listening on the cover
Closed, the cover shows the text with the current sentence marked above a compact player, with the controls in a rail down the side. Turned sideways, the cover puts a mini player beside the text, says the developer.
About Prismark
Prismark reads aloud whatever you give it and marks each sentence as it goes: articles shared from your web browser, pasted text or links, PDFs and documents from Files, and books, which you can move through by chapter. Tap any sentence to start from there, pick a voice and a speed, and keep listening with the screen locked. The voices run on your device, so it works offline with no account. Documents sort into folders, each with its own marker color, and the color you choose tints the app icon too. Prismark came out on October 14, 2026, for iPhone and iPad, and version 1.0.1 added CarPlay.
On the iPhone Duo it opens like a book, with the text on the left page and the player on the right; held upright, the text sits above the player. Close it and it keeps reading on the cover, with the text above a compact player. Zachary Coleman says folding the phone casts a subtle shadow across the pages, and that the cover turned sideways shows a mini player beside the text. Before launch, the app appeared on X as Read Aloud, in TestFlight.
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 press kit's unframed iPhone Duo screenshots, each with the 9:41 Duo status ring: two at 2853 × 2007, the simulator's open display, with Pride and Prejudice and A Christmas Carol on the left page beside the player, chapter and up next; one at 2007 × 2853, the open display upright, with the text above the player; and one at 1398 × 2034, the cover, with Moby-Dick above a compact player.
Poses shown: Open, Closed. These are observations of the evidence, not a test of every interaction.
App version: Not recorded in this evidence. Environment: iPhone Duo simulator.
Still captures can't show the fold, the book-like shadow or the cover turned sideways that the developer describes; the half-folded pictures on the website are renders. No app or Xcode version is given, and no build was tested.
View reviewed evidence ↗
On the ideas wall
All ideas
I'm currently working on a text to speech app that will be all on device, etc. It's still in TestFlight but should be ready by the day the Duo comes out Primarily for sending articles from safari but books/etc work too. I'm working on folders/color change support rn… Show more
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Is this your app?
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Sources: Prismark on the App Store (apps.apple.com) · Prismark press kit, with iPhone Duo screenshots (zach-coleman.com) · Prismark website (zach-coleman.com) · Zachary Coleman on X, showing the app as Read Aloud in TestFlight (x.com)
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