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!

What’s New

Version 3.11

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.
You can now use explicit "floor" and "ceiling" rounding in user functions and conversions.
Fixed a number of icon problems.
Fixed a problem with the "Use B&W Icons" option for the Apple Watch resetting.
Fixed a problem creating custom functions, conversions, and constants after resetting iCloud data.
Fixed a crash with the Registers popup on iPad.
Fixed a crash when editing layouts on another device.
Fixed a crash when rotating the device.
PCalc now requires iOS 12.1 or later.

Ratings and Reviews

4.8 out of 5
13 Ratings

13 Ratings

trueMaulik ,

Awesome 👌🏼👌🏼

The one & only best complete calculator App on the App Store. Thanks James..!! 🙌🏼

Sri harsha sharma ,

We don't want your 42 image on startup

We bought your app. But don't want your startup logo on opening the app.

NieRAutomata69 ,

Best calculator app ever.

Has more features and looks amazing. Also the widget is great. Easily the best cash you will spend on a calculator ever.

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 based on, for example, 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 will be able to use this app with Family Sharing enabled.

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