PCalc 4+

The Best Calculator

TLA Systems Ltd.

    • 4.8 • 14 Ratings
    • $13.99



PCalc is the powerful choice for scientists, engineers, students, programmers, or indeed anybody looking for a feature rich calculator. It includes an optional RPN mode and multi-line display, a choice of button layouts, an extensive set of unit conversions and constants, a paper tape, multiple undo and redo, engineering and scientific notation, as well as support for hexadecimal, octal, and binary calculations.

What’s New

Version 4.10.4

Improved the appearance of the app.
Added menu commands for copying and pasting numbers with U.S. formatting.
Added menu commands for copying and clearing the tape.
Added a new digit style, "Matrix".
Changed the display of numbers between 0.1 and 1.0 to be more consistent in Engineering mode.
You can now set images for the categories of custom functions, conversions, and constants.
iCloud syncing of user data is now switched on again by default if you are running macOS 12.4 or later.
Fixed a problem with operator button selection being lost.
Fixed a problem with Shortcuts always opening the app.
Fixed a problem with the conversion actions in Shortcuts when set to "Ask each time".

Ratings and Reviews

4.8 out of 5
14 Ratings

14 Ratings

Fellaa ,

Color themes

My question was resolved.

Developer Response ,

You can change the theme in the View menu - all the themes shown are available there. Hope that helps!

Jitsusama ,

The best at what it does

This has been my favorite calculator app on iOS for some time, and it’s just as amazing on OS X. If you’re a programmar or engineer, this is the calculator app you want. No frilly graphs, no silly hand-writing recognition nonsense, this is a calculator for geeks, made by geeks, that’ll do what cool people want to do!

Whether it’s awesome RPN, groovy themes, customization that will blow your mind, a multitude of base systems supported, or whatever, it does it and it does it well.

No, I don’t work for these guys, but I do love their calculators so much, and this version is no exception.

peterlanders ,

Wonderful calculator with personality

I know, it’s a calculator. Hardly glamourous. And yet, one of my favourite Mac (and iOS) apps for years now.

It does everything you’d expect, and lots of stuff you wouldn’t. And it does it all in a very attractively-designed interface that can be customized to match your preferences.

There are so many little details, from the Douglas Adams references to the Braun-styled PCalc logo on that interface theme, that give it tons of charm and personality.

I can’t recommend PCalc enough.

App Privacy

The developer, TLA Systems Ltd., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer's privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Game Center

    Challenge friends and check leaderboards and achievements.

  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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