Excellent app that continues to improve

PCalc is the rare app that manages to add features without cluttering the user interface or getting in your way. I was a satisfied customer when I first bought it at Version 1, and Im even more satisfied now.

PCalcs list of features—unit conversions; base conversions; built-in constants; RPN mode; multi-line display (with your choice for the value of "multi"); user-defined functions and unit conversions; and selectable color themes, keyboard layouts, and digit styles—is impressive, but whats more impressive is the care with which they are implemented. The popup indicators that tell you which key youre pressing, the sliding display that stays on screen as you choose a conversion or change a preference, the stack display that also shows you the contents of the memory slots—these are the small things that need to be done right if the features are to be usable. PCalc does them right.

Finally, PCalc lets you create your own custom keyboard layouts. This, combined with user-defined functions and conversions, allows you to turn it into almost any type of calculator you want. Youre getting, in effect, an infinite number of calculators.

A few years ago, the batteries in my physical calculator died, and I never replaced them. PCalc is what I reach for.

Dr. Drang about PCalc, v3.5.3