Best Numerical³ alternatives: apps like Numerical³

10+ similar apps compared and reviewed

4.6 avg rating
8 free apps
Updated November 2026

Numerical³ is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to Numerical³

Calculator for All: Solves#1

Calculator for All: Solves by Oleg Barinov

Basic, Scientific, No Ads
Editor's Choice
🔧 Utilities
4.9😊(385 ratings)
FreeIn-App Purchases
Calculator for All: Solves screenshot 1
Calculator for All: Solves screenshot 2
Calculator for All: Solves screenshot 3
Calculator for All: Solves screenshot 4
Calculator for All: Solves screenshot 5

A versatile calculator app for Apple devices that offers instant results, editable expressions, and synchronized history across all your devices. It includes unit conversion and is free with no ads. An optional one-time purchase unlocks advanced features like currency conversion and history tools.

What We Love

  • 👍 Excellent calculator app
  • 🚀 Smooth and responsive
  • 🔒 No ads or data collection
  • 💡 Useful features like history, comments, and unit conversions
  • 👍 Clean and intuitive design
  • 👍 Syncs across devices
  • 👍 Customizable themes
  • 👍 Great alternative to default calculator

Room to Improve

  • 🐛 Occasional crashes or bugs after updates
  • 🐛 Issues with certain mathematical operations
  • 🐛 Family sharing not working properly
  • 🐛 Lag or performance issues on some devices
  • 💡 Desire for more advanced features like fractions, base conversions
PCalc Lite#2

PCalc Lite by TLA Systems Ltd.

The Best Calculator
Strong Contender
🔧 Utilities
4.4😊(214 ratings)
FreeIn-App Purchases
PCalc Lite screenshot 1
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PCalc Lite screenshot 4
PCalc Lite screenshot 5

This free scientific calculator offers essential features like RPN mode, unit conversions, and multiple undo/redo. It provides a taste of a more powerful version, with optional in-app purchases for expanded functionality.

What We Love

  • 🚀 Fast and responsive
  • 👍 Clean and intuitive interface
  • 💡 Customizable themes and settings
  • 🚀 Efficient performance
  • 👍 Useful conversion tools
  • 👍 Excellent Apple Watch support

Room to Improve

  • 🐛 Occasional lags and crashes
  • 🔒 Lack of dark mode support
  • 🔒 Inconsistent icon appearance after upgrades
  • 🔒 Limitations in RPN mode on Apple Watch
  • 🔒 Lack of financial calculator functions
Kalkyl#3

Kalkyl by nordic io

Just a really good calculator
Worth Considering
🔧 Utilities
4.5😊(717 ratings)
FreeIn-App Purchases
Kalkyl screenshot 1
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Kalkyl screenshot 4
Kalkyl screenshot 5

A powerful and intuitive calculator designed for speed and ease of use. Features include collaboration, haptic feedback, and advanced input methods like keyboard trackpad mode. Offers basic graphing and localized number formatting for a seamless user experience.

What We Love

  • 🚀 Efficient and fast
  • 👍 Intuitive and simple interface
  • 🔒 No ads or in-app purchases
  • 🎨 Beautiful design
  • 🔢 Useful graphing and calculation features

Room to Improve

  • 🐛 Occasional crashes or bugs
  • 💡 Lack of clear/reset button
  • 💡 Missing history or memory functions
  • 💡 Difficulty controlling graphing view

More apps like Numerical³

4
PCalc
PCalc
PCalc
The Best Calculator
$9.99

A powerful calculator designed for professionals and students, offering advanced features like RPN mode, multi-line display, and extensive unit conversions. It supports various number systems and includes an Apple Watch app for on-the-go calculations.

Optional RPN modeMulti-line displayExtensive unit conversions
🔧 Utilities
(779)
free with in-app purchases
5
Calcbot 2
Calcbot 2
Calcbot 2
Calculator and Unit Converter
Free

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.

History tape for saved calculationsExpression view for typed inputOver 500 unit conversions
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6
Calculator Plus v2
Calculator Plus v2
Calculator Plus v2
Simple. Scientific. Smart.
Free

This app offers a powerful yet simple calculator experience, combining standard and scientific functions with live previews and error hints. It supports various input methods, including hardware keyboards and Apple Pencil, and provides multiple display formats for clear understanding of calculations.

Standard and scientific calculatorLive expression and answer previewMultiple display formats
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7
CALC Smart Calculator ±
CALC Smart Calculator ±
CALC Smart Calculator ±
Basic « Scientific » Advanced
Free

This app offers a versatile calculator experience with basic, scientific, and advanced modes. It features real-time results, unit conversions, custom functions, and a shareable history. Optimized for various Apple devices, it's designed for ease of use by students, professionals, and scientists.

Real-time resultsUnit and currency conversionsCustom functions and constants
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8
Desktop Calculator -Real Voice
Desktop Calculator -Real Voice
Desktop Calculator -Real Voice
No Ads / Key Sound / Basic Cal
Free

Perform calculations directly from your home screen with interactive widgets. Customize themes, fonts, and even add unique sound effects for a personalized experience. Access quick calculations via Control Center and Lock Screen widgets.

Home Screen Interactive WidgetsReal Voice Pronunciation (Male/Female)Display Calculation Formulas
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9
TechniCalc Calculator
TechniCalc Calculator
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
🔧 Utilities
(84)
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10
Calculator Max
Calculator Max
Calculator Max
Modern All-in-One Calculator
Free

This app offers a comprehensive suite of calculation tools, from basic arithmetic to advanced scientific functions. It features a history tape for easy access and reuse of entries, and a unique scribble pad for handwritten notes and equation solving on iPads. Enjoy a clean interface, multitasking support, and customizable themes.

Basic and scientific calculatorsHistory tape with export optionsHandwritten notes and equation solving
🔧 Utilities
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free with in-app purchases