# DuoFolio — Spread reader for iPhone Duo

> Spread reader for iPhone Duo (iPhone/iPad app by 俊杰 沈.)

- Source: https://appshunter.io/ios/app/duofolio/id6823855712 (this page in markdown: same URL + `.md`)
- Developer: [俊杰 沈](https://appshunter.io/developer/6773175292)
- Category: Books, Productivity
- Price: $6.99
- Age rating: 4+
- Requires: iOS 26.0 · 1 MB
- Languages: American English
- Released: 2026-10-19
- Data updated: 2026-10-29

## What is DuoFolio?

DuoFolio is an immersive reader built for iPhone Duo: one book per screen, true two-page spreads.
A layout engine designed for the fold — unfold for a bound book, fold for a single flowing column.

· Two-page spread: reads like a real book, separate left/right pages with a paper-feel gutter
· Cover bookmark: close the phone and the outer display shows cover, title & progress — flip open to continue
· Local-only: your EPUBs stay yours. No account, no upload, no tracking
· Refined typography: serif faces, tuned line spacing, paper-tone themes for long sessions
· Position memory: column-accurate progress that follows you across folded, half-open and fully open

Import your own EPUB and start reading.

## Chart rankings

- #94 in Top Paid · Book (US App Store)

## Is DuoFolio safe?

Not enough ratings yet to assess DuoFolio.

## Is DuoFolio legit?

DuoFolio appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for DuoFolio is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 3 releases)

### 1.0.2 — 2026-10-25

Refreshed store artwork and localized copy. Reading experience unchanged.

### 1.0.1 — 2026-10-20

Fixed the missing English subtitle and completed the store metadata. No app changes.

### 1.0 — 2026-10-19

No release notes.

## More apps by 俊杰 沈

- [KinetFit: Workout Tracker](https://appshunter.io/ios/app/kinetfit-workout-tracker/id6773755689)
- [KinetMorning](https://appshunter.io/ios/app/kinetmorning/id6779978181)
- [KinetSoul: AI Companion](https://appshunter.io/ios/app/kinetsoul-ai-companion/id6780600464)
- [KinetTask: Private AI Tasks](https://appshunter.io/ios/app/kinettask-private-ai-tasks/id6780944289)
- [KinetBrief: AI Meeting Notes](https://appshunter.io/ios/app/kinetbrief-ai-meeting-notes/id6782778566)
- [KinetStudy](https://appshunter.io/ios/app/kinetstudy/id6797004663)

All apps by 俊杰 沈: https://appshunter.io/developer/6773175292

## Related topics

[duoreader](https://appshunter.io/ios/topics/duoreader)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-29.*