DuoFolio
EPUB reader showing true two-page spreads, with cover and progress on the outer screen.
俊杰 沈 · Reading & News · $6.99
iPhone screenshots
How it uses iPhone Duo
DuoFolio is an immersive reader built for iPhone Duo: one book per screen, true two-page spreads.
What’s New
Version 1.0.2 ·
Refreshed store artwork and localized copy. Reading experience unchanged.
App Store descriptionWritten by the developer.
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.
DuoFolio on iPhone Duo: FAQ
Is DuoFolio optimized for iPhone Duo?
Yes. DuoFolio is Built for Duo: it uses the fold, Split View or the outer display. Verified on October 25, 2026 (App Store text).
What does DuoFolio look like on iPhone Duo?
DuoFolio is an immersive reader built for iPhone Duo: one book per screen, true two-page spreads.
How much does DuoFolio cost?
DuoFolio costs $6.99 on the App Store.
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