Best apps like RedCrab Calculator

43+ similar apps compared and reviewed

4.7 avg rating
8 free apps
Updated July 2026

Whether you want more options like RedCrab Calculator or a completely different take on the same concept, our curated list of 43+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.

Top Alternatives to RedCrab Calculator

Calculator HD Pro Lite#1

Calculator HD Pro Lite by Cider Software LLC

Basic & Scientific Calc
Editor's Choice
🔧 Utilities
4.6😊(51K ratings)
FreeAds
Calculator HD Pro Lite screenshot 1
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Calculator HD Pro Lite screenshot 3
Calculator HD Pro Lite screenshot 4
Calculator HD Pro Lite screenshot 5

This app offers a user-friendly calculator with large buttons and extensive customization options. It features a dual-line display to see input and results simultaneously, saves your calculation history, and provides full scientific functions. Personalize layouts, themes, and even button symbols to suit your needs.

What We Love

  • 👍 Easy to use
  • 📝 Keeps calculation history
  • 💡 Customizable layout and themes
  • 🔢 Large, clear numbers

Room to Improve

  • 💢 Intrusive ads, especially between calculations
  • 🙄 Ads that are difficult to close
  • 🤦‍♂️ Ads that interrupt workflow
Calculator +#2

Calculator + by xNeat.com

Scientific Calc Plus Fraction
Strong Contender
🔧 Utilities
4.6😊(9.6K ratings)
FreeAdsIn-App Purchases
Calculator + screenshot 1

This app offers a free basic and scientific calculator with an intuitive interface. It supports fractions, percentages, and advanced editing. Optional upgrades provide specialized calculators for fractions with units, polynomial and linear equation solving, graphing, and geometric shapes.

What We Love

  • 👍 Great features and easy to use
  • 👍 Efficient and quick
  • 👍 Versatile, functional calculator
  • 👍 Fantastic, easy to use app

Room to Improve

  • 🐛 New updated layout is awful
  • 🐛 App is now terrible
  • 🔒 Paying customer screwed over by update
Calculator₊#3

Calculator₊ by Impala Studios

Basic, Scientific, Calc +-
Worth Considering
🔧 Utilities
4.7😞(1.7M ratings)
FreeAdsIn-App Purchases
Calculator₊ screenshot 1
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This app offers a comprehensive suite of calculation tools, including basic, scientific, and unit conversion functions. It features an AI-powered math solver that can solve problems from photos and a dedicated math notes section for jotting down equations and diagrams. Accessibility options like dynamic text size and VoiceOver support are also included.

What We Love

  • 💻 Useful calculator features
  • 🎨 Customizable backgrounds and themes
  • 📚 Helpful history tracking

Room to Improve

  • 📺 Intrusive full-screen ads
  • 💰 Expensive subscription model
  • 🔍 Ads blocking calculator functionality

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This app offers ten powerful calculators, including scientific, graphing, and financial tools, along with numerous worksheets and conversion options. It's designed to handle complex calculations, currency conversions, and financial planning with advanced features and customizable displays.

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This multi-function calculator offers basic to advanced scientific and algebraic computations. It includes features like handwriting recognition, equation solvers, and 2D graphing, making it suitable for students and professionals. In-app purchases unlock advanced capabilities.

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Calculator⁼
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Fraction, Scientific Calc +
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This app offers a clean and intuitive interface for both basic arithmetic and advanced scientific calculations. It includes a history tape to review past computations and supports various mathematical operations, making it suitable for everyday use and complex problem-solving.

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Calculator HD Pro
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Calculator HD Pro
Basic & Scientific Calc
$9.99

This app offers a powerful and customizable calculator experience with a dual-line display for seeing input and results simultaneously. Save and organize your calculations with history, labeling, and email options. Personalize layouts, themes, and fonts for a comfortable and efficient user experience.

Dual-line displayMulti-line inputCalculation history
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8
CALC Smart Calculator ±
CALC Smart Calculator ±
CALC Smart Calculator ±
Basic « Scientific » Advanced
Free
$5.99 | 100% OFF

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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9
Panecal Scientific Calculator
Panecal Scientific Calculator
Panecal Scientific Calculator
For engineers and students
Free

This app functions as a scientific calculator, enabling users to input and edit complex formulas with ease. It supports formula history, variable memory, and various number system conversions for accurate calculations.

Formula editing with cursor and swipeReuse past formulasVariable memory for calculations
🔧 Utilities
(1.9K)
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10
Calculator Pro Lite
Calculator Pro Lite
Calculator Pro Lite
Best Calculator
Free

A highly customizable calculator app offering a modern interface and extensive features. Personalize themes, button layouts, and visual elements. Track your calculations with a detailed history and access scientific functions.

Customizable themes and colorsDual-line displayCalculation history
🔧 Utilities
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