PCalc app icon

PCalc

A scientific calculator with RPN and unit conversions

MaciPhoneiPadWatch4.7779 ratings$9.99 once

The verdict

If you are an engineer, programmer or student who needs RPN, hex and binary modes or a real paper tape, PCalc has been the answer on Apple devices for over 30 years. Apple's built-in Calculator can't match its button layout editor, long list of constants or menu bar mode on the Mac. You do pay twice, $9.99 for iPhone, iPad and Apple Watch and another $9.99 for the Mac.

The Useful TechResearched and written with AI under our rulesUpdated 14 Oct 2026

Get it if

You are an engineering or computer science student who wants RPN or binary math on your phone and wrist.

Skip it if

You split dinner bills and convert the odd currency, and the free PCalc Lite or Apple's Calculator is enough.

Screenshots 4

What it helps you do

  • Do quick sums from the Mac menu bar
  • Convert units by typing "$ to £"
  • Work in hex, octal or binary
  • Design your own calculator button layout

Plans and prices

  • iPhone, iPad, Apple Watch and Vision Pro

    $9.99

    $9.99 once, 1 universal purchase

  • Mac

    $9.99

    $9.99 once on the Mac App Store

  • PCalc Lite

    Free

    Free on iPhone, iPad and Apple Watch, with the full version's features sold inside it

What changed

  1. Version 3.15.2

    Improved support for iPhone Duo. Improved the grid view layout for the functions, conversions, and constants. Added a few more missing conversion units. Fixed a bug with the trigonometry functions. Fixed the app icons on older OS versions.

  2. Added to The Useful Apps

Pick something else if

All 3 PCalc alternatives

PCalc head to head

The details

Runs on
Mac, iPhone, iPad, Apple Watch
Requires
macOS 15.0 or later
Version
3.15.2
Size
87 MB
Made by
TLA Systems Ltd.
Rating
4.7 from 779 ratings on the App Store
Menu bar app
Lives in the menu bar
Shortcuts
Works with the Shortcuts app
Family Sharing
1 purchase for the family

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