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FeaturedUnfold a second screen for your Mac, with touch and Apple Pencil.
Productivity · iPhone Duo app
by Muhammad Ali Nayani
Half fold it into a typewriter: the page on top, the keys below.
iPhone Duo support
Confirmed
Checked by hand against the App Store.
Screenshots
Screenshots from the App Store. Tap one to see it full size.
On iPhone Duo
Halfpage is a writing app. Fold iPhone Duo halfway and the page sits on the top half with a mechanical typewriter keyboard filling the bottom half; open it fully and the page fills the screen.
Yes. iPhone Duo support is confirmed in the App Store description of Halfpage version 1.0, released Nov 6, 2026.
Halfpage costs $2.99 on the US App Store.
Halfpage is made by Muhammad Ali Nayani and is in the Productivity category.