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Pascal: 3-in-1 Calculator

Pascal: 3-in-1 Calculator

RPN, Graphs and Bits

23 ratings
145 reviews
🔧 Utilities
📊 Productivity
$2.99
In-App Purchases

Details

Released
March 5, 2014
Updated
October 4, 2026

Features

Developer

Andrew Wei
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🧾$0.99 - $1.99
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About

This app offers a powerful 3-in-1 calculator experience, combining scientific, graphing, and programmer functionalities. The scientific calculator is free, while graphing and programmer modes require an in-app purchase, with trials available for testing.

✓Scientific calculator (degree, radian, gradian modes)
✓RPN mode
✓Graphing calculator with smart tape and adaptive sampling
✓Programmer calculator (8, 16, 32, 64-bit bitwise)
✓Multiple numeral systems (binary, octal, decimal, hex)
✓Unicode and ASCII character encoding
Show original description

What users say about Pascal

Reviews of Pascal are mostly positive: the Productivity app is rated 4.0/5 from 23 App Store ratings. What users like most: clean and modern design, fast and responsive. Top complaints: graphing and programming features require payment, no iPad Magic Keyboard support. Summarized from real user reviews.

Positive things

  • ✨Clean and modern design
  • 🚀Fast and responsive
  • 👍User-friendly interface
  • 💡Comprehensive functionality
  • 🌟Excellent for school/university
  • 📱Great Apple Watch app
  • 📈Powerful graphing capabilities
  • 💻Useful programming calculator
  • 💸Good value for features
  • 🆓Free with no ads (for basic version)
  • 🔄Smooth rotation support
  • 📲Useful widget
  • 💡Supports RPN logic
  • 🎨Appealing themes available

Negative things

  • 💰Graphing and programming features require payment
  • ⌨️No iPad Magic Keyboard support
  • 🤔RPN logic not easily discoverable
  • 📉Some users lost premium features after updates
  • ⚠️Potential for crashes after updates
  • 🚫No tape for DEG mode
  • ❓Difficulty finding polar graph instructions
  • 🔊Annoying click sounds
See all reviews

What's New in Pascal

10.0.0

October 4, 2026

- Modernize for iOS 27 - Upgrade watchOS app - Support keyboard on iPad - Replace click sounds with optional haptic feedback --- If you enjoy using Pascal, please consider leaving a positive review. It means a lot!

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3

Subscriptions & In-App Purchases

$0.99

Theme Pack

7 additional themes for your Calculator³.

User reviews

Most RecentHighest RatedLowest Rated

Pascal RPN

I love this calculator. Excellent design without having to imitate the 70’s physical ones. 5 stars
EMEd Mtl

Falta de opción

Muy bien para el apple watch, pero encuentro que debería tener la opción de “porcentaje %” también. Espero lean este comentario y agreguen esa opción
AAlejandroz23

Too limited.

Also, I thought the description mentioned this used RPN logic? If so, I could not find how to select it.
WSWhapper Stan

Great interface, missing RPN on Apple Watch

This is a fantastic iOS app and works very well. The only thing to make it better would be some additional features on the Apple Watch side, such as RPN.
BBroughtToYouByAdam

Does not support iPad keyboard

I just bought the IAP for this app and then I discover that it doesn’t support entering numbers when using the Magic Keyboard oniPad - this is an unserious app.
FFiercely
See 140 more reviews

User experience

🐞

Reported Bugs

12 issues

Crashes after updates

Bug

Premium features reverted to basic

Bug

Cannot enter numbers with iPad Magic Keyboard

Bug

RPN logic not selectable

Bug

Key response slow or nonexistent on watch

Bug

Lost programming calculator after update

Bug

App crashes when typing '='

Bug

App crashes immediately upon opening

Bug

Fonts are blurry on iPhone 6

Bug

Bug with exponentiation (adds random digit 2)

Bug

Cannot swipe to change calculator modes

Bug

Making a number negative results in incorrect value

Bug
✨

Requested Features

12 requests

Add RPN to Apple Watch app

Feature

Improve iPad Magic Keyboard support

Feature

Make themes free for all users

Feature

Add a backspace button to Apple Watch app

Feature

Add Arabic language support

Feature

Change app icon for better recognition

Feature

Option to disable or change click sounds

Feature

Improve navigation for editing equations

Feature

Make graph view full screen

Feature

Add polar graph instructions or functionality

Feature

Add a tape for DEG mode

Feature

Add a widget for iOS 8

Feature

FAQ

What does Pascal: 3-in-1 Calculator do?

Pascal is a professional-grade calculator app that combines scientific, graphing, and programmer functionalities. It offers advanced features for various calculation needs, including RPN mode, complex mathematical operations, and bitwise calculations.

What are the key features of the scientific calculator?

The free scientific calculator supports degree, radian, and gradian modes, decimal factorials, modulo operator, permutations and combinations, standard memory functions, and RPN mode. It also includes a Today widget and Apple Watch app.

How much does the graphing and programmer calculator cost?

The graphing calculator and programmer calculator require an in-app purchase to unlock. However, the app provides three trials for each of these modes, allowing you to test their full functionality before purchasing.

What platforms is Pascal: 3-in-1 Calculator compatible with?

Based on the description mentioning 'Apple Watch app' and 'Today widget', the app is designed for Apple devices, likely including iPhones, iPads, and Apple Watches running compatible iOS versions.

Can I use the app for programming tasks?

Yes, the app includes a dedicated programmer calculator that supports 8, 16, 32, and 64-bit bitwise calculations. It also handles binary, octal, decimal, and hexadecimal numeral systems, along with Unicode and ASCII character encoding.