Opening the iTunes Store.If iTunes doesn't open, click the iTunes application icon in your Dock or on your Windows desktop.Progress Indicator
Opening the iBooks Store.If iBooks doesn't open, click the iBooks app in your Dock.Progress Indicator

iTunes is the world's easiest way to organize and add to your digital media collection.

We are unable to find iTunes on your computer. To buy and download PCalc - The Best Calculator by TLA Systems Ltd., get iTunes now.

Already have iTunes? Click I Have iTunes to open it now.

I Have iTunes Free Download

PCalc - The Best Calculator

By TLA Systems Ltd.

This app is only available on the App Store for iOS devices.


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 in Version 3.7.3

Improved the iPhone X support a little bit more.


iPhone Screenshot 1
iPhone Screenshot 2
iPhone Screenshot 3
iPhone Screenshot 4
iPhone Screenshot 5
iPad Screenshot 1
iPad Screenshot 2
iPad Screenshot 3
iPad Screenshot 4
iPad Screenshot 5
iPhone Screenshot 1
iPhone Screenshot 2
iPhone Screenshot 3
iPhone Screenshot 4
iPhone Screenshot 5

Customer Reviews

The best calculator for iOS period.

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

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.

Great app

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.

PCalc - The Best Calculator
View in iTunes
This app is designed for both iPhone and iPad
Offers Apple Watch App for iPhone
  • $9.99
  • Category: Utilities
  • Updated:
  • Version: 3.7.3
  • Size: 76.0 MB
  • Apple Watch: Yes
  • Language: English
  • Seller:

Compatibility: Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions:

Top In-App Purchases

  1. Small Tip$0.99
  2. Medium Tip$1.99
  3. Large Tip$4.99
  4. Enormous Tip$9.99