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PCalc app review: offering a full-featured powerful calculator with scientific and engineering functions



PCalc is a premium calculator app loaded with advanced features including scientific functions, constants, unit converter, and many more. It offers customizable display options so you can choose a more convenient layout. It has a large display screen that supports auto-adjustment of digit font size. Developed by TLA Systems, this app is compatible with iPhone, iPad, and iPod touch.

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The Ultimate Calculator for Complex Problem Solving

PCalc is one of the leading calculator apps in the App Store. It was first introduced for the iPhone in 2008. It has since received numerous upgrades and more advanced functions for complex operations.

The best iPhone apps for scientific calculators 2021

When you download the premium version of this iPhone calculator app, you will get all the key features of a typical standard calculator including exponents, nested operations, trigonometric functions, roots, RPN, and many more. It comes with built-in ticker tape that shows previous calculations and storage register for displaying contents of the memory.

This calculator works both in landscape and portrait mode. To keep the screen active while you’re doing your calculations, just disable the sleep mode from the settings menu. You can also customize the app’s display settings to control the number of lines that will appear on screen.

The app supports some smart gestures including two-finger swipe to control line display and screen swipe or shake device for undo/redo operations. More importantly, it allows you to copy/paste digits and equations from the app to another application and vice versa.

PCalc makes conversions easier. Just open the conversion tab to view different categories for angles, areas, bytes, currency, fuel efficiency, pressure, measurements, and many more. It automatically converts whole numbers as you type them on the display screen.

The Ultimate Calculator for Complex Problem Solving image

Best Features of PCalc

PCalc offers loads of predefined functions useful for more complex calculations. There are a total of six main function categories including trigonometric, complex numbers, special numbers, and financial. What makes this app unique is that you can input your own mathematical function and it will be included as a custom function.

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One of the best features of PCalc is the engineering constants. It supports seven advanced categories such as astronomical functions for determining object radius and gravity. It also allows you to use atomic constants, physicochemical Avogadro, and electromagnetic constants.

Another great feature of the app is its range of customizable display options. It offers 13 themes for customizing the interface, eight vertical layouts for portrait orientation, and 10 horizontal layouts for landscape view. Button keys are customizable too and can be stacked for user convenience.

And lastly, PCalc now supports Apple Watch integration. You can view your calculations or perform quick problem-solving without taking out your large device. Just use the Apple Watch and you can access all user-defined functions and memory content.

Best Features of PCalc image



Pros and Cons


  • Offers advanced scientific and engineering functions
  • Fully customizable display
  • Offers comprehensive conversion tool
  • Supports Reverse Polish Notation
  • With dozens of layout options
  • Allows user-defined functions
  • Supports Apple Watch


  • Might be confusing for casual users

Pros and Cons image

Final Thoughts

PCalc is one of the most advanced scientific and engineering calculators on the App Store. It offers loads of functions and advanced features with customizable display options. Check it out and see if it's the best calculator app for you. 


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Cherry is a hard-working writer and an aspiring web designer who can't go a day without using her favorite apps. She's always on the lookout for new apps and enjoys discovering ones that others have overlooked.