Infuse
In-App PurchasesDuo-native
Your own library, widescreen in a pocket.
Registry/ Apps /PCalc
On the Duo: Duo-native. James Thomson has shown it in Apple's Duo simulator, the keys parting around the hinge and then the display above the keys in laptop pose. Not in the App Store version (3.14.4) yet. Checked October 7, 2026.
App Store data as of October 7, 2026
Why it's here
Not for
Anyone who only adds up the bill: the free calculator does that.
About PCalc
The calculator for scientists, engineers, programmers and students: optional RPN, a multi-line display, a choice of button layouts, unit conversions and constants, a paper tape, hexadecimal, octal and binary, and an Apple Watch app.
Its iPhone Duo layout, shown day by day in Apple's Duo simulator, splits the keys around the hinge as the phone folds and moves to a laptop layout with the display on top and the keys below. It is not in the App Store version (3.14.4) yet; builds with Duo support could be submitted from 6 October.
