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Let’s face it—every smartphone comes preloaded with a calculator, but most are fairly basic and often not suited for all your calculation needs. Whether you’re a student tackling homework, a professional managing finances, or someone who frequently splits bills, having a reliable calculator app can simplify daily tasks. We’ve curated a list of the best calculator apps available, ranging from straightforward to highly advanced tools that can handle everything short of doing your taxes (almost!).
If you’re searching for an app for calculator use every day, you’re making a practical choice. AppsInsight is always here to help you find the best calculator app tailored to your specific needs, ensuring you get the perfect tool for everyday use.
1) Photomath
Photomath revolutionizes math learning by using your smartphone camera to scan and solve equations—handwritten or printed. It instantly breaks down problems step-by-step, covering topics from basic arithmetic to calculus and statistics. Available on iOS and Android, Photomath emphasizes understanding with multiple solving approaches, helpful visuals, and clear explanations.
Its intuitive interface makes it ideal for students, parents helping with homework, or anyone refreshing their math skills. While the core features are free, premium options offer deeper insights.
Key Features of Photomath:
- Camera-based scanning and solving
- Covers elementary to advanced math
- Stepwise explanations
- Optional premium upgrade
- iOS and Android support
Ideal for: Students, parents, learners prepping for exams
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2) Desmos Graphing Calculator
Desmos is a free, web-based graphing calculator perfect for students and educators alike. Its interactive interface lets you plot functions, create tables, animate graphs, and adjust variables dynamically.
Available on both web and mobile platforms, Desmos supports a wide range of math concepts and is widely used in classrooms and standardized testing.
Key Features of Desmos Graphing Calculator:
- Real-time graphing and dynamic sliders
- Supports functions, tables, inequalities
- Free across devices
- Classroom-friendly with teacher resources
Ideal for: High school and college students, teachers, visual learners
3) MyScript Calculator
MyScript Calculator brings handwriting to life by converting your handwritten math expressions into instant calculations.
Using your finger or stylus, write equations naturally, and the app interprets and solves them on the spot. It supports complex math, gestures like scratch-out editing, and stores your calculation history, blending pen-and-paper comfort with digital convenience.
Key Features MyScript Calculator:
- Handwriting recognition
- Solve for unknowns with “?”
- Supports fractions, trigonometry, logs
- Scratch-out and drag-and-drop editing
- Available on iOS and Android
Ideal for: Users preferring handwriting, visual learners, students
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4) Calculator Plus
Calculator Plus offers a clean, user-friendly interface with large buttons and clear numerals, making everyday calculations effortless.
It remembers all your calculations for easy review, supports basic arithmetic and percentages, and works in both portrait and landscape modes. Available on Android, iOS, and Amazon devices, it’s a reliable tool favored by millions.
Key Features Calculator Plus:
- History of all calculations
- Large, easy-to-read buttons
- Memory functions and percentage calculations
- Multi-platform support
Ideal for: Everyday users, shoppers, those who value simplicity
5. Calc Pro
Calc Pro is an all-in-one calculator app combining standard, scientific, graphing, and financial calculators into a single platform.
With over 3,000 unit conversions and support for 150+ currencies updated daily, it caters to professionals and students needing versatile calculation tools. Its rich library of constants and extensive worksheets makes it a powerful companion on iOS, Android, and Windows.
Key Features Calc Pro:
- 10 calculators in one app
- Thousands of unit conversions
- Financial and statistical worksheets
- Multi-platform availability
Ideal for: Professionals, students, users requiring advanced features
6) Calzy
Awarded the Apple Design Award in 2018, Calzy combines style with functionality for iOS, iPadOS, and watchOS users. Its standout “Memory Area” lets you store and drag numerical values easily, while bookmarking features save calculations with custom titles.
It supports modern iOS capabilities like Face ID and Haptic Touch, providing a seamless and secure experience.
Key Features of Calzy:
- Memory Area for reusable numbers
- Bookmarking calculations
- Integration with iOS features
- One-time purchase, no in-app buys
Ideal for: Users seeking elegant design and robust features on Apple devices
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7) PCalc Lite
PCalc Lite is a powerful scientific calculator app for iOS featuring optional Reverse Polish Notation (RPN), multiple undo options, and extensive unit conversions.
It supports hexadecimal, octal, and binary calculations, and includes an Apple Watch app for convenience.
Key Features of PCalc Lite:
- Optional RPN mode
- Calculation history with undo/redo
- Extensive unit conversions
- Apple Watch support
Ideal for: Students, engineers, and Apple Watch users
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8) Numerical
Numerical offers a minimalist experience by continuously updating calculations in real time as you type—no equals button needed.
Its clean interface supports quick corrections with expression editing and history tracking, making it ideal for fast arithmetic and more complex math alike.
Key Features of Numerical:
- Instant calculation updates
- Expression editing and history tracking
- Minimalist design
Ideal for: Users who want real-time feedback and simplicity
9) Calcbot 2
Calcbot 2 by Tapbots is a smart calculator and unit converter supporting over 500 units and auto-updating currency rates.
It features a history tape, expression view, and syncs across Apple devices via iCloud, complete with sounds and animations for a pleasant user experience.
Key Features of Calcbot 2:
- History tape and expression view
- 500+ unit conversions
- iCloud syncing
- Apple Watch extension
Ideal for: Users wanting a smart calculator with seamless device integration
10) Graphing Calculator X84
Graphing Calculator X84 replicates the TI-84 calculator’s powerful features on Android and iOS.
It supports complex graphing, matrix operations, and statistical functions, making it perfect for students and professionals needing a portable, advanced math tool.
Key Features of Graphing Calculator X84:
- TI-84 calculator functionality
- Parametric, polar, and sequence graphing
- Matrix and stats functions
- Available on Android and iOS
Ideal for: Students, engineers, and advanced math users
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11) Calculate84
Calculate84 is a contemporary graphing calculator app built for iOS, designed to mimic the functionality of the popular TI-84 series. Developed by Century Light LLC, it features fast, interactive touchscreen graphing and intuitive navigation with scrollable windows, eliminating repetitive keystrokes.
The app provides helpful error messages and a user-friendly interface. It is free to download, with additional advanced features available via an optional paid membership. Ideal for students, professionals, and anyone seeking a reliable graphing tool on their iPhone.
Key Features Calculate84:
- Responsive touchscreen graphing
- Scrollable windows for smooth navigation
- Intelligent error detection
- Clean and accessible interface
- Free with optional premium membership
Best Suited For:
Students handling coursework, professionals needing a portable graphing calculator, and users wanting a modern, easy-to-use calculator app.
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12. All-in-One Calculator
Available on both Android and iOS, All-in-One Calculator offers over 75 tools including scientific calculators, unit and currency converters, and specialized calculators for finance, health, and more. Its clean interface supports editable inputs, calculation history, and memory functions, making it perfect for students, professionals, and anyone needing quick and accurate results.
Offline currency conversion with current exchange rates and handy widgets enhance usability. The app is free with optional in-app purchases for additional features and ad removal.
Key Features of All-in-One Calculator:
- 75+ calculators and converters
- Advanced scientific functions
- Offline currency conversions with updated rates
- Editable input fields and history tracking
- Convenient widgets for quick access
- Free with optional in-app upgrades
Best Suited For:
Students, professionals, and anyone needing versatile and efficient calculation tools.
13) Calculator – Pad Edition
Designed specifically for iPad users, Calculator – Pad Edition features a sleek flat UI reminiscent of the iOS native calculator. It supports both basic and scientific modes: portrait orientation for standard arithmetic and landscape for advanced functions such as roots, factorials, logarithms, and trigonometry.
Additional features include fraction calculations, international currency conversions, unit conversions, and a tip calculator. The app is free to download, with optional in-app purchases to remove ads and unlock extra themes.
Key Features of Calculator – Pad Edition:
- Flat design mirroring native iOS calculator
- Basic and scientific calculation modes
- Fraction, currency, and unit converters
- Tip calculator for quick math
- Free with optional in-app purchases
Best Suited For:
iPad users wanting a familiar, versatile calculator with both simple and advanced functions.
14) The Calculator
Created by Impala Studios, The Calculator is a flexible app for iPhone and iPad that offers both basic and scientific calculators. It features currency conversion with real-time rates, a history log for past calculations, and customizable themes.
The app supports multitasking on iPad for seamless workflows and is free to download, with optional in-app purchases to remove ads and unlock premium features.
Key Features of The Calculator:
- Basic and scientific calculator modes
- Up-to-date currency conversion
- Calculation history for easy review
- Customizable themes
- Multitasking on iPad
- Free with optional premium upgrades
Best Suited For:
iOS users needing a reliable, easy-to-use calculator, travelers requiring currency conversions, and students or professionals needing scientific functions.
15) Calculator Pro+ for iPad
Calculator Pro+ offers iPad users a dual-mode calculator: basic in portrait and scientific in landscape. It includes a universal converter supporting currency, length, time, weight, temperature, fuel consumption, and more. Multitasking lets users run the calculator alongside other apps.
The app is free to download, with optional purchases to remove ads and add themes.
Key Features Calculator Pro+ for iPad:
- Basic and scientific modes depending on orientation
- Universal unit and currency converter
- Multitasking support on iPad
- Free with optional in-app purchases
Best Suited For:
iPad users who need a comprehensive calculator and converter app with multitasking capabilities.
16) Intuitive Calculator
Intuitive Calculator is a free app for iPhone, iPad, and Mac (M1 or later), designed to make calculations clear and straightforward. It displays equations in a natural, textbook style to improve readability and reduce errors. The app supports basic arithmetic and scientific functions like trigonometry and logarithms.
Features include undo/redo, copy-paste, swipe gestures for advanced operations, and an error detection system with detailed explanations. No ads or in-app purchases make it ideal for uninterrupted learning.
Key Features of Intuitive Calculator:
- Natural equation formatting
- Basic and scientific math support
- Undo, redo, copy-paste editing
- Swipe gestures for extra functions
- Error detection with explanations
- Completely free and ad-free
Best Suited For:
Students learning math, users wanting a clean, educational calculator, and anyone needing an ad-free, intuitive calculator.
17) Simple Calculator (Simple Mobile Tools)
Simple Calculator by Simple Mobile Tools is an open-source, minimalist calculator app for Android users who want an ad-free, privacy-focused experience. It offers basic arithmetic operations including percentages and square roots, a dark theme to reduce eye strain, and a history log.
Widgets can be customized for text and background colors. It also includes an option to prevent the device from sleeping during calculations. It runs without unnecessary permissions, prioritizing user control.
Key Features of Simple Calculator:
- Basic math including percentage and square roots
- History log to revisit calculations
- Customizable widgets
- Dark theme for comfort
- Prevents phone sleep during use
- Open-source and ad-free
Best Suited For:
Android users wanting a simple, privacy-respecting calculator with no ads or distractions.
18) Calctan
Calctan is an iOS calculator with a minimalist design and extensive customization options. It offers over 100 themes and adjustable button layouts. Beyond basic calculations, it supports 47 advanced mathematical functions like trigonometry, logarithms, exponents, and factorials.
The app keeps a history of calculations with edit capabilities and syncs via iCloud for use across devices. Split-screen support on iPad enhances multitasking. Available in several languages.
Key Features of Calctan:
- 100+ customizable themes
- 47 advanced math functions
- Editable calculation history
- iCloud sync across devices
- iPad split-screen support
Best Suited For:
Students and professionals needing advanced functions, users who want a personalized interface, and iPad users focused on productivity.
19) Style Calculator (iOS Style for Android)
Style Calculator brings the sleek, minimalist look of the iOS calculator to Android devices. It supports basic operations like addition, subtraction, multiplication, and division with large, easy-to-press buttons.
Optimized for a wide range of Android devices, it offers smooth performance and accessibility for all users. While it focuses on simplicity without advanced features, it’s perfect for everyday calculations. The app is free with optional in-app purchases to remove ads.
Key Features of Style Calculator:
- iOS-style clean, minimalist interface
- Basic arithmetic functions
- Large, user-friendly buttons
- Optimized for diverse Android devices
- Free with optional ad removal purchases
Best Suited For:
Android users who prefer the iOS calculator design and want a simple, no-frills calculator.
20) Google Calculator
Google Calculator is Google’s official calculator app for Android devices, combining basic arithmetic and scientific functions in a clean, intuitive layout.
It supports portrait and landscape modes and includes a history feature for reviewing past calculations. The app is free, regularly updated, and offers reliable performance for everyday and advanced math needs.
Key Features of Google Calculator:
- Basic and scientific calculator functions
- Clean, easy-to-use interface
- Supports multiple orientations
- Calculation history log
- Free with regular updates
Best Suited For:
Android users seeking a straightforward, dependable calculator with scientific features and a clean design.
Sum up
Calculator apps today go well beyond the simple tools pre-installed on phones. From Photomath’s camera-powered problem-solving to Desmos’s interactive graphing, and handwriting-friendly MyScript Calculator to versatile Calc Pro, these apps offer tailored solutions for everyone—students, professionals, and casual users alike. They enhance learning, efficiency, and accessibility, bridging traditional math with modern technology and empowering users to solve problems confidently and effortlessly.
