Best apps like PCalc

10+ similar apps compared and reviewed

4.4 avg rating
6 free apps
Updated October 2026

Looking for something like PCalc? We've analyzed 10+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.

Top Alternatives to PCalc

Numerical³#1

Numerical³ by Andrew J Clark

The Calculator Without Equal
Editor's Choice
🔧 Utilities
4.8😊(1.3K ratings)
Free
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A powerful and beautifully designed calculator app that offers advanced scientific functions, automatic bracket handling, and a unique no-equals button interface. It integrates seamlessly with iOS features like widgets and keyboards for calculations anywhere.

What We Love

  • 🚀 Great app
  • 👍 Simple and intuitive
  • 👍 Clean and beautiful design
  • 🚀 Fast and responsive
  • 👍 Customizable themes
  • 👍 Useful features (history, editing, no equals)
  • 👍 No ads

Room to Improve

  • 🐛 Bugs and glitches (unresponsive keys, calculation errors)
  • 🔍 Lack of advanced functions (scientific, unit conversion)
  • 💡 Needs more theme options
  • 💡 Needs iPad support
  • 💡 Needs widget support
Free42#2

Free42 by Thomas Okken

HP-42S Calculator Simulator
Strong Contender
🔧 Utilities
4.8😊(283 ratings)
Free
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This application is a faithful re-implementation of the HP-42S scientific calculator and its associated printer. It offers full functionality without requiring original HP ROM images and is an open-source project.

What We Love

  • 🚀 Faithful reproduction of HP42S
  • 👍 Identical to physical calculator
  • 👍 Runs all original programs
  • 👍 Convenient to have on phone
  • 👍 Haptic feedback on button presses
  • 👍 Customizable skins
  • 👍 Actively maintained and updated

Room to Improve

  • 🐛 Screen not filling entire display on newer devices
  • 🔇 Configurable key click sound missing
  • 🔇 Lack of loud click sound feedback
Calcbot 2#3

Calcbot 2 by Tapbots

Calculator and Unit Converter
Worth Considering
🔧 Utilities
4.7😐(11K ratings)
FreeIn-App Purchases
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This app offers a smart calculator with a history tape and expression view to track your calculations. It includes over 500 unit conversions and scientific functions, with an Apple Watch extension for on-the-go use.

What We Love

  • 💻 Flexible calculator & conversions
  • 📝 Comprehensive history tape
  • 🎨 Customizable themes and icons
  • ⌚️ Apple Watch app
  • 🔢 Supports advanced calculations
  • 🧮 Excellent unit conversion tool

Room to Improve

  • ⚠️ Lack of updates and support
  • 🚫 Removing free features behind paywall
  • 🐞 Bugs and glitches (history tape issues, crashing)
  • 🕰️ Slow loading times
  • 🤔 Unintuitive interface for conversions

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4
Plus42
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This advanced scientific calculator simulates the classic HP-42S RPN calculator with enhanced features. It offers algebraic expressions, unit conversions, directories for storage, a larger resizable display, financial functions, and 2D plotting with integral and root finding.

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Present, Record & Share Screen
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Bookmarks: Linkeeper
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Effortlessly Bookmark Websites
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This app provides a seamless way to save and organize website links. It offers deep iOS integration, iCloud synchronization, and extensive Siri Shortcuts for effortless management. The user interface is designed for a delightful and intuitive experience.

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TechniCalc Calculator
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TechniCalc Calculator
Scientific & Engineering
$7.99

This app offers a modern, intuitive interface for complex calculations, supporting scientific, engineering, and advanced mathematical functions. It allows natural equation entry, provides a formula book, and includes unit and currency converters. Available across Apple devices, it caters to students and professionals needing a powerful calculation tool.

Natural equation entryAdvanced math engineFormula book and equations
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Just Press Record
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Record. Transcribe. Sync.
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Effortlessly capture audio moments with one-tap recording, automatic transcription, and seamless syncing across all your Apple devices. Edit audio and text, share easily, and organize your recordings with powerful search and organizational tools.

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HP 15c Calculator
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Official emulator of HP 15c
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Experience the official emulator of the legendary HP 15c scientific calculator. This app offers a redesigned interface and modern look while preserving the precision and reliability of the original. It features RPN input, matrix calculations, complex functions, and numerical integration for professionals and students.

Official HP 15c emulatorRPN (Reverse Polish Notation)Matrix calculations
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Kagi for Safari
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Kagi for Safari
Send Safari searches to Kagi
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This extension seamlessly redirects your Safari searches to Kagi, a privacy-focused search engine. Enjoy a clean interface with relevant results, no ads, and no data collection, even in private browsing mode.

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