A pocket sketchbook that opens into two connected pages on the Duo
Does Trazo — Pocket Sketchbook work on iPhone Duo?
Yes, the developer says so: closed, one notebook page in your pocket; open, a two-page spread where a line can cross from page to page.
- App Store confirmedFontecha Creative Studios, the developer, in the App Store description for version 1.0 (released October 16, 2026), which says that on iPhone Duo the sketchbook is one page when closed and a two-page spread when open. The developer's site illustrates both layouts.
Adapted for the fold
- Open · Inner display
Draw across two pages
Open, the same notebook becomes a full two-page spread, where one line can cross from page to page.
About Trazo — Pocket Sketchbook
Trazo is a sketchbook that’s always within reach. Draw with 2H, HB and 6B pencils and a highlighter on plain, dotted, grid or lined paper, turn real pages, dress the cover in leather and stickers, and replay any page as a timelapse. You can find a sketch by what you wrote or when you drew it. There’s no account and no tracking, and your notebooks stay on your device.
On iPhone Duo, closed, it’s one page in your pocket. Open it, and the same notebook becomes a full two-page spread, where one line can cross from page to page.
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: "On iPhone Duo, Trazo is one page in your pocket." (version 1.0.2, released October 22, 2026).
App version: 1.0.2.
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 ↗
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Is this your app?
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Sources: Trazo — Pocket Sketchbook on the App Store (apps.apple.com) · Trazo — Pocket Sketchbook in Apple's app lookup (itunes.apple.com) · Trazo on the developer's site (fontecha.studio)
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