PCalc - The Best Calculator

PCalc - The Best Calculator

By TLA Systems Ltd.

  • Category: Utilities
  • Release Date: 2008-07-11
  • Current Version: 3.7.3
  • Adult Rating: 4+
  • File Size: 72.49 MB
  • Developer: TLA Systems Ltd.
  • Compatibility: Requires iOS 8.0 or later.
Score: 4.5
From 1,234 Ratings


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. Includes an Apple Watch app, so you can calculate on your wrist!



  • Um, no parentheses?

    By Paige4o4
    I heard great things about PCalc, but it’s pretty disappointing. You can’t use parentheses yourself; it auto-adds them in the ticker tape, and not very clearly. Honestly this is just a beefed up stock calculator app. If you want a TI-83 replacement/alternative, this app isn’t it.
  • i shelled out the $10 because it’s the only good RPN calculator out there

    By Lennyhpiv
    really good app
  • Great app

    By ajes1
    This really is the best calculator on the iPhone. I only wish they would add some financial functions. Having NPV, FV, IRR, and loan calculations would be a great addition to an already superior app. Either way the developers have done a fine job.
  • Simply The Best

    By Happy Customer 42
    There are a lot of nice calculator apps out, but this one is unquestionably the best. A stellar interface, extensive functionality, configurable, what more could one ask for?
  • The best calculator for iOS period.

    By Wentzel
    I originally bought and updated the light version to get all the functionality. When I got a chance I also bought the full version since I hated the app showing the ‘lite’ version on my phone. Hey the developer has to eat too! This is my goto calculator period. Does everything and more. It also is the best functioning Apple Watch calculator. Buy it! The developer is great, responsive and updates frequently!
  • GREAT APP- Terribly BAD timing on my part

    By Bob Gorski
    This is a great calculator and I have been using the lite version for some time. This morning I purchased the full version and not twelve hours later it is deeply discounted. It would be great if the developer would refund a portion of the purchase. If not it is still a great calculator and worth the cost.
  • The iwatch #1 calculator

    By Princejron
    Best calculator app on the iwatch, hands down!!! All the conversions on your wrist, so convenient.
  • Best dedicated calculator app on the Apple platform.

    By masochist_
    I have been developing something of a calculator hobby, collecting vintage HP calculators, reading manuals for fun, watching YouTube videos about them, etc. I’ve tried a number of different calculators on the Apple platform (macOS and iOS), both the stock calculators and several custom calculators. PCalc has more features, is better supported, and has more fiddly details available when the user wants them than any other dedicated calculator I’ve tried. The apps work exactly as I would expect, and most importantly fit in with the rest of the OS. There’s so much polish and attention to detail here; PCalc stands out as a gem on the Apple platform. If you want more than the stock calculator, but don’t want a fancy CAS or graphing tool, PCalc is where you should start looking. Bonus points for all the details emulating vintage HP calculators, particularly the RPN support and the Voyager series layout.
  • Absolutely the best

    By OregonWave
    I use this so much it’s in my dock. Whether it’s the quality button layout, formulas or conversion utilities it does it. This is a must have for just about anyone. They also have always been on top of iOS upgrades too. It also has the most functional calculator app for Apple Watch users.
  • Best Calculator Of Any Kind

    By E-Paul
    A long-time user of PCalc lite, I recently upgraded to the full version. I am delighted. This is the best calculator of ANY kind. As a physicist, mathematician and programmer I really appreciate the easy access to constants of all kinds, unit conversions, base arithmetic, RPN. It’s all in there. It turns my iPad into the ultimate calculator and numerical tool. Better yet, it requires no documentation. It all works the way you would expect it to. Get it now—you will not be disappointed.