Always current. New iPhone Duo apps are added as soon as they ship — we check every week.

See what’s new →

Viewer DUO

Books · satoshi amasaki · Verified

What changes on iPhone Duo

A book viewer that fills the Duo's screen and turns the crease into the book's spine.

How it uses the fold

Screenshots

Viewer DUO screenshot 1Viewer DUO screenshot 2Viewer DUO screenshot 3

Images from the App Store; they may show the standard iPhone layout.

How we verified it

Confirmed in the app’s App Store release notes (v1.1)

More Books apps

Your report helps us keep the list honest. Notes are private and only read by our editors.