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.PCalc Lite is a fully functional and free taste of our very popular scientific calculator. It includes an optional RPN mode, multiple undo and redo, unit conversions and constants, as well as two stylish themes and our highly praised design. A great choice for your new iPad!

If you like what you see, the full version has many more settings and themes, a paper tape, engineering and scientific notation, and full support for hexadecimal, octal, and binary calculations. You can also now purchase extra features directly from inside PCalc Lite. Buy them individually, or buy everything.

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

What’s New

Version 3.11

This app has been updated by Apple to display the Apple Watch app icon.

Added support for iOS and iPadOS 15.
Added support for watchOS 8.
Added the ability to link calculations to notes via Quick Note on iPadOS 15.
Fixed a number of icon problems.
Fixed a crash when rotating the device.
PCalc now requires iOS 12.1 or later.

With the "Power User Pack" installed:
Fixed a problem with the "Use B&W Icons" option for the Apple Watch resetting.

With the "Conversion Pack" installed:
You can now use explicit "floor" and "ceiling" rounding in user functions and conversions.
Fixed a problem creating custom functions, conversions, and constants after resetting iCloud data.

With the "Engineer Pack" or "Programmer Pack" installed:
Fixed a crash with the Registers popup on iPad.
Fixed a crash when editing layouts on another device.

Ratings and Reviews

4.5 out of 5
159 Ratings

159 Ratings

9235S ,

Excellent choice

There are several “full feature” calculators in the App Store, and this is one of them. PCalc is an excellent choice, if you want a calculator that does number manipulation, this may be the one for you. If you need graphing, or ability to solve quadratic equations, you need to look elsewhere.

What I’d like to see is a user manual as part of the app, not just a link to an online location.

Also, if you do buy the packs, your icon is indistinguishable from the free version. I have all the packs, except the programmer pack (those days are in the distant past for me). There should be a difference in appearance and name - perhaps you can call it PCalc Plus, instead of PCalc Lite, and add the “+” symbol to the icon?

Finally, do the currency conversions get automatically updated? If so, how often? If no, how do you update manually?

KJandBA ,

Engineering decimal places

Overall, an excellent calculator app. Will award that 5th star when the Engineering Decimal Places is fixed.

Correct implementation will show the same number of significant digits as specified. The flawed implementation controls only digits after the decimal. Thus the significant digits shown is different depending on value. Very annoying. (See HP for correct approach.)

If this is all that’s wrong, then these folks have produced a top quality product. Hope y’all fix it!

meta732 ,

iPhone X, iOS 11.x

Orders of magnitude better than the stock calculator and so many others. The option to add only the additional features that one requires make for an affordable, intuitive experience. Look no further if you want an app that is maintained consistently and always works with the latest devices (even the free version without any additional features unlocked) because PCalc Lite delivers. These are the developers that we should support.

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

    With Family Sharing set up, up to six family members can use this app.

More By This Developer

You Might Also Like