Finding the right calculator app can be tough, especially with so many options out there. You need an app that’s easy to use, looks good, and can handle all your math needs. That’s why we’ve rounded up the best calculator apps for Android and iPhone, so you can find the perfect one for you!
Whether you're a student trying to ace your math class or just need a quick way to calculate a tip, you’ll find it on this list! We've got apps for every kind of user, including Samsung Calculator for a simple and clean design, Calculator for its robust features, and Calculator for its intuitive interface. Get ready to ditch the old, boring calculator and find the perfect match for your mobile device!
| App | Logo | Available On | Reviews | Downloads | Features |
|---|---|---|---|---|---|
| 1. Samsung Calculator |  | Android | 4.5/5 | 3B+ | Engineering calculations, Unit conversions, Calculation history |
| 2. Calculator |  | Android, iOS | 4.3/5 | 2B+ | Basic calculations, Scientific operations, Beautiful design |
| 3. Calculator |  | Android, iOS | 4/5 | 2B+ | Currency conversion, Loan/Mortgage calculator, Scientific functions |
| 4. HideU |  | Android, iOS | 4.4/5 | 139M+ | Hide photos & videos, Secret media files, Privacy guard |
| 5. Calculator Plus with History |  | Android, iOS | 4.8/5 | 60M+ | Big display and buttons, Calculation history, Memory storage |
| 6. Simple Calculator |  | Android | 4.5/5 | 17M+ | Engineering calculations, Unit conversions, Calculation history |
| 7. All |  | Android, iOS | 4.9/5 | 14M+ | 75+ FREE Calculators, Simple or Scientific, Completely FREE |
1. Samsung Calculator
Basic and engineering calculations, Unit conversion for multiple types
Download:
Application information
| Category | Tools |
| Downloads | Over 2.6 Billion |
| Features | The Samsung Calculator app offers basic arithmetic operations, scientific calculations, unit conversions, and a calculation history for easy access to past calculations. |
| Who It’s For | Anyone who needs a reliable and versatile calculator app on their Android device. |
- Tags:
- Engineering calculations
- Unit conversions
- Calculation history
The Samsung Calculator app boasts a comprehensive set of features, including unit conversions, a scientific calculator, and a handy calculation history. However, users have consistently expressed frustration with the app's jarring color scheme, particularly the white-on-white display of numbers, making it difficult to use. While the app is lauded for its intuitive design and lack of ads, the inclusion of an unavoidable clicking sound has led some to seek out alternative calculator apps. Despite these drawbacks, the Samsung Calculator remains a popular choice for many, especially for its advanced functionality and well-organized interface.
Pros & Cons
- Intuitive and easy to use
- Includes unit converter and history
- Offers advanced scientific functions
- No ads or in-app purchases
- Difficult to see numbers on white background
- Clicking sounds cannot be disabled
- Color scheme is not customizable
Why we chose it?
I've tried a ton of calculator apps, but Samsung Calculator is my go-to! It's super simple to use for everyday calculations, and when I need to get into more complex stuff, the engineering mode has me covered. Plus, it's seamlessly integrated with my Samsung phone, which makes it so much more convenient.
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2. Calculator
Simple and intuitive design, Basic and scientific functions, Clear and accurate results
Download:
Application information
| Category | Tools |
| Downloads | Over two billion downloads |
| Features | The Calculator app offers basic arithmetic, scientific operations, and history tracking for easy reference. |
| Who It’s For | Anyone needing a reliable and versatile calculator on their Android device. |
- Tags:
- Simple Calculations
- Advanced Functions
- Beautiful Design
The "Calculator" app on your mobile device is a deceptively powerful little tool. While its new interface might seem aimed at a younger audience, don't let that fool you – it's surprisingly robust. This calculator app delivers accurate results, even for complex equations involving fractions and trigonometric functions. While some users have expressed concerns about the recent update's less-than-ideal aesthetics and the changes to the parenthesis and backspace buttons, the app still holds its own as a dependable and capable calculator. However, the recent updates have brought a new challenge with the font choices, making it difficult for users with less-than-perfect vision to navigate the app easily.
Pros & Cons
- Provides exact answers
- Displays fractions and decimals
- Handles complex calculations
- Functional and reliable
- Unpleasant new interface
- Difficult to use parentheses
- Hard to read font and colors
Why we chose it?
Look, I've tried a ton of calculator apps, and let me tell you, Calculator is the real deal! It's so easy to use, whether you're just doing basic math or need some serious scientific calculations. Plus, it's completely free and doesn't come with any annoying ads. Trust me, you won't regret giving this app a shot!
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3. Calculator
Basic, scientific, and mortgage calculators, Daily updated currency exchange rates
Download:
Application information
| Category | Tools |
| Downloads | Over 1.8 Billion Downloads |
| Features | This calculator app offers basic, scientific, currency, loan/mortgage calculations, and unit conversion tools. |
| Who It’s For | Anyone who needs a reliable and versatile calculator on their Android device. |
- Tags:
- All-in-one calculator
- Basic and scientific
- Currency converter
The "Calculator" app from Xiaomi is far more than your average calculator app. It boasts a stylish UI and an impressive range of features, including a powerful converter that sets it apart from the competition. Users rave about its speed, smoothness, and ease of use, praising the recent update for its performance enhancements and gorgeous design. While some users have reported a bug with the latest update, the overall sentiment remains overwhelmingly positive, with users consistently calling it the "best" calculator app available.
Pros & Cons
- Converter features are great
- Stylish and intuitive UI
- Fast and smooth performance
- Excellent conversion capabilities
- Buggy update with scaling issues
- Lack of dark theme option
- No programmer calculator included
Why we chose it?
This calculator app is a total game-changer! It's got everything you need in one place, from basic calculations to scientific functions and even currency conversions. I love that it's super user-friendly and has a sleek design, making it a pleasure to use. Plus, it's completely free, so there's no reason not to give it a try!
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4. HideU
Hides photos and videos, Uses calculator password protection
Cost:
Free (Free), HideU Premium ($4.99/month)
Download:
Application information
| Category | Tools |
| Downloads | Over 138 Million |
| Features | HideU is a calculator app that allows you to securely hide photos, videos, and other files behind a PIN-protected calculator interface, offering privacy and security for your personal information. |
| Who It’s For | Individuals seeking to protect their private photos, videos, and files from unauthorized access. |
- Tags:
- Private Media Vault
- Calculator Disguise
- PIN Protection
HideU is a deceptively simple calculator app that unlocks a powerful vault for your privacy. It's like having a secret safe inside your phone, where you can stash photos, videos, files, contacts, and even browse the web without prying eyes. While the app does have ads, users praise its effectiveness in keeping their data secure and its sleek, intuitive design. The calculator interface seamlessly blends with your other apps, ensuring that your hidden content remains hidden. Some users have expressed a desire for an ad-free version, highlighting the app's potential to become even more valuable for those seeking maximum privacy.
Pros & Cons
- Calculator app hides content
- Hides photos, videos, files
- Access social media & Google
- Combines features of other apps
- Ads can be intrusive
- App freezes with loading ads
- No paid version available
Why we chose it?
HideU is a fantastic choice for a calculator app because it's more than just a calculator. It doubles as a safe space to store your private photos, videos, and files, hidden behind a password-protected calculator interface. You can easily manage your files and even create notes and use a camera within the app, making it a versatile and reliable tool for keeping your data secure and organized.
5. Calculator Plus with History
Big display, easy to use, History tracking, review calculations
Cost:
Free (Free), Calculator Plus with History Pro ($2.99/month)
Download:
Application information
| Category | Tools |
| Downloads | Over 60 million downloads |
| Features | Calculator Plus offers basic math functions, a history log to review past calculations, memory storage for quick recall, and a large, clear display with big buttons for easy use. |
| Who It’s For | Anyone needing a simple and user-friendly calculator app for everyday calculations. |
- Tags:
- Easy to use
- Big buttons
- Calculation history
Calculator Plus with History is a solid choice for anyone looking for a simple, reliable calculator app on their mobile device. The app's clear interface, big buttons, and easy-to-read display make it a breeze to use, even for those who aren't particularly tech-savvy. One user even praised the app's forgiving button recognition, allowing for quick calculations without sacrificing accuracy. While some users have expressed concerns about intrusive ads and the history feature's formatting, many appreciate the app's stability, lack of notifications, and the convenience of tracking past calculations.
Pros & Cons
- Well designed user interface
- Essential functions plus scientific
- Running history of calculations
- Easy to see and use buttons
- Loud and embarrassing ads
- Confusing history format
- Infrequent pop-up ads
Why we chose it?
Calculator Plus with History is a fantastic choice for your mobile calculator needs! It's got everything you need in a calculator app, from basic functions to a helpful history feature, all wrapped up in a clean and easy-to-use interface. I especially love the big buttons, which make it super easy to tap on the right number or operation, even with clumsy fingers. If you're looking for a reliable, simple, and stylish calculator app, Calculator Plus is the one to download!
6. Simple Calculator
Basic and scientific calculations, Extensive unit conversion support
Download:
Application information
| Category | Productivity |
| Downloads | Over 16 Million |
| Features | This [calculator app] performs basic arithmetic operations and engineering calculations, offers a unit converter for various measurements, allows users to access calculation history, and includes a dark mode option. |
| Who It’s For | Anyone who needs a simple and reliable calculator for everyday use. |
- Tags:
- Engineering calculations
- Calculation history
- Unit conversion
"Simple Calculator" is a shining example of a mobile calculator app that prioritizes user experience and functionality. This app, praised by users for its straightforward design and essential features, is a boon for anyone needing a quick and easy way to perform basic calculations. The app's intuitive interface and customizable options, like theme changes and unit conversion, make it a truly personalized tool for everyday use. While some users appreciate the option to pay for ad-free use, others highlight the need for improved background functionality to maintain seamless transitions between apps. Overall, "Simple Calculator" is a standout choice for those seeking a reliable and user-friendly calculator app.
Pros & Cons
- Basic functions and requirements
- Easy to use calculator
- Customization options available
- Unit converter and screen customization
- Annoying ads have popped up
- Does not stay running in background
- Inconvenient to access again
Why we chose it?
Simple Calculator is a fantastic choice because it's super easy to use and gets the job done quickly. It's packed with features for both basic and scientific calculations, and the clear layout makes it a breeze to navigate. Whether you need to quickly add up a grocery bill or solve a complex equation, Simple Calculator is the app to have on your phone!
7. All
Simple and scientific calculator, Unit and currency converter
Cost:
Free (Free), Premium ($2.99/month)
Download:
Application information
| Category | Productivity |
| Downloads | Over 13 million downloads |
| Features | This app offers a comprehensive suite of calculators including basic, scientific, unit conversion, currency conversion, and more. |
| Who It’s For | The 'All' app is ideal for anyone seeking a versatile and powerful calculator app that covers a wide range of needs. |
- Tags:
- 75+ Calculators & Converters
- Simple & Scientific Calculator
- Free, complete, easy to use
"All" is a truly comprehensive calculator app that goes above and beyond the basics. This app is a lifesaver for anyone who needs more than just simple arithmetic, offering a vast array of functions, from currency conversion to unit calculations, all within a single, intuitive interface. Users rave about its "everything at once" approach, eliminating the need to juggle multiple apps or write down intermediate results. While ads are present, they are unobtrusive, allowing users to focus on the task at hand without interruption. This app is a clear winner for anyone looking for a powerful and user-friendly calculator solution.
Pros & Cons
- Comprehensive calculations
- Intuitive and user-friendly
- Scientific buttons on one screen
- Multiple unit conversions
- Occasional ads at bottom
- Ads may be intrusive
- Some users may find ads annoying
Why we chose it?
You know, I've tried a ton of calculator apps, but All really stands out! It's packed with over 75 calculators and converters for everything from simple math to complex conversions. What I love most is how intuitive and easy to use the interface is, even for someone who isn't a math whiz like me. And the scientific calculator is a real game-changer, letting me tackle even the toughest problems.
8. Maple Calculator
Step-by-step solutions for problems, Generates 2D and 3D visualizations
Cost:
Free (Free), Maple Learn ($10/month)
Download:
Application information
| Category | Education |
| Downloads | Over 4.7 million |
| Features | Maple Calculator provides step-by-step solutions, 2D/3D visualizations, and solves a wide range of math problems from high school to university levels. |
| Who It’s For | Students and anyone needing help with math problems. |
- Tags:
- Step-by-step math solutions
- Quick and powerful math solver
- All-in-one calculator
Maple Calculator is a powerful mobile app that brings the renowned Maple math engine to your fingertips. While its handwriting recognition isn't perfect, users praise its ability to solve complex math problems, including those beyond the capabilities of other popular apps like Microsoft Math Solver. The app's strength lies in its ability to provide step-by-step solutions, which are particularly useful for students tackling challenging homework assignments. However, users express concerns about the lack of local saving options and the limited functionality of the on-screen keyboard, which can make entering expressions cumbersome. Despite these drawbacks, the app's potential is undeniable, and its growing feature set makes it a promising tool for anyone needing a powerful calculator on the go.
Pros & Cons
- Good handwriting recognition
- Wider camera opening
- Solves problems Microsoft can't
- Access to Maple functionality
- Can't edit math input
- No local saving options
- Difficult keyboard input
Why we chose it?
Maple Calculator is my absolute go-to app for any math problem, big or small! It's like having a personal tutor in my pocket, offering step-by-step solutions that make even the most complex concepts clear. I love that it goes beyond just providing answers; it actually teaches you how to solve problems, which has been a game-changer for my understanding of math.
9. HiPER Calc Pro
Symbolic algebra calculations, Graphing of functions, Integrals and derivatives
Download:
Application information
| Category | Calculator App |
| Downloads | Over 40 million downloads |
| Features | HiPER Calc Pro is a powerful scientific calculator with symbolic algebra, graphing, equations, integrals, derivatives, and the ability to write expressions naturally and see calculations displayed as numbers, simplified expressions, or more. |
| Who It’s For | This app is perfect for students, engineers, scientists, or anyone who needs a powerful and versatile calculator. |
- Tags:
- Natural input
- Symbolic algebra
- Graphing
HiPER Calc Pro is a top-tier calculator app designed for scientific work, earning praise for its intuitive layout and robust functionality. Users consistently highlight its ease of use, particularly appreciating the direct access to essential keys like pi, square root, and x-squared, avoiding the frustrating "shift" button. This app goes beyond basic calculations, offering advanced features like "x"th root, decimal to fraction conversion, derivatives, and even polynomial factorization. The developer continuously updates the app with thoughtful additions, including multiple memory options and a variety of display modes, making HiPER Calc Pro a truly versatile and powerful tool for any scientific endeavor.
Pros & Cons
- Excellent scientific calculator
- Well laid out, great functionality
- No need to shift for common keys
- Many features, including xth root, derivatives
- Missing prime factorization button
- Not perfect, some minor improvements possible
- Could benefit from a more visual layout
Why we chose it?
HiPER Calc Pro is my go-to calculator app because it's incredibly powerful yet easy to use. It handles complex calculations with ease, from basic arithmetic to advanced calculus, and its intuitive interface makes it a breeze to navigate. Plus, the ability to graph functions and solve equations makes it a truly versatile tool, whether I'm tackling homework or just exploring mathematical concepts.
10. 10BA Pro Financial Calculator
Single-Access Key for quick functions, Integrated Cheatsheet for easy learning
Cost:
Free (Free), Premium ($4.99/month)
Download:
Application information
| Category | Productivity |
| Downloads | Over 240,000 downloads |
| Features | The app offers a user-friendly interface that includes a single-access key for quick function activation, integrated cheatsheets for easy reference, and a customizable background for a personalized experience. |
| Who It’s For | This calculator app is perfect for students, professionals, and anyone who needs a reliable and versatile financial calculator. |
- Tags:
- Single-Access Key
- Integrated Cheatsheet
- Anti-Boring Interface
If you're familiar with the classic HP 10B financial calculator, then the 10BA Pro Financial Calculator app is like having a giant, supercharged version right on your mobile device. This calculator app replicates the functionality of the beloved HP 10B, making it an ideal choice for those who appreciate its familiar interface and powerful features. While not the most intuitive, the app offers a comprehensive set of tools for financial calculations, and with a little practice and the help of the online manual, you'll be mastering its intricacies in no time.
Pros & Cons
- Works like HP 10B
- Extensive functionality
- Excellent user interface
- Comprehensive features
- Learning curve required
- Not intuitive for beginners
- Requires dedicated learning
Why we chose it?
I'm so glad you're considering 10BA Pro! It's truly the best financial calculator app out there, and here's why: First, it's packed with powerful features, from basic calculations to advanced functions like IRR and NPV. Second, it's incredibly user-friendly, with a layout that mirrors the classic HP calculators, making it a breeze to use. Finally, its built-in cheat sheets and a clear, detailed manual make it easy to learn and master, even if you're new to financial calculations.
11. Calculator Plus
Stores calculations for later review, Large, easy-to-read display design
Download:
Application information
| Category | Productivity |
| Downloads | Over 200,000 downloads |
| Features | Calculator Plus is a powerful calculator app that offers advanced features like history, memory, and currency conversions, making it suitable for a wide range of users. |
| Who It’s For | Calculator Plus is perfect for anyone who needs a reliable and feature-rich calculator app for everyday use, from students to professionals. |
- Tags:
- Easy to use
- Big and readable
- Remembers calculations
Calculator Plus is the quintessential calculator app for Android, praised for its first-class quality, sleek design, and exceptional functionality. Users rave about its intuitive interface and ability to remember calculations, making it a go-to tool for everyday tasks. One user described it as a "definite addition to every new phone or tablet," highlighting its value and the enduring satisfaction it provides. While it's a paid app, the developer's commitment to delivering a premium experience and eliminating annoying ads has earned widespread respect.
Pros & Cons
- Excellent value one-time purchase
- Works exactly as described
- Dark mode works great
- Great for phones and tablets
- Icon changed to circle
- Ads in free version
- Developer changed the icon
Why we chose it?
Calculator Plus is my go-to app for all my calculating needs! It's incredibly user-friendly, with a large, clear display that makes it easy to see my calculations. And the best part? It remembers everything I've calculated, so I can easily review my work or pick up where I left off - no more retyping!
12. ROCK Jobsite
Cut lists, measurement lists, Integrated PDF markup tools, Cloud backup and sharing
Download:
Application information
| Category | Tools |
| Downloads | Over 15,000 Downloads |
| Features | ROCK Jobsite is a powerful construction calculator app with integrated measurement lists, automatic measurement sharing, PDF markup, and over 50 construction calculators for all your job site needs. |
| Who It’s For | Construction professionals, contractors, and anyone who needs a powerful and versatile calculator app for their job site. |
- Tags:
- Integrated cut lists
- Automatic measurement sharing
- 50+ construction calculators
ROCK Jobsite is a game-changing calculator app designed specifically for construction professionals. This powerful tool, hailed as "rock solid" by users, streamlines your jobsite workflow with its intuitive measurement lists, seamless team collaboration, and a library of over 50 construction-specific calculators. Forget about pen and paper – ROCK Jobsite lets you effortlessly organize measurements, share them instantly with your team, and save valuable time on every project.
Pros & Cons
- Powerful calculator for jobsite
- Easy measurement sharing with team
- Organizes measurements efficiently
- Saves time on projects
- Limited features in first release
- Requires additional hardware for full use
- No offline functionality mentioned
Why we chose it?
ROCK Jobsite is my absolute go-to for construction calculations! It's packed with over 50 calculators covering everything from lumber to concrete, and the automatic measurement lists and PDF markup tools are game-changers for staying organized on the job. Plus, it's super easy to share measurements with my team, which makes collaboration a breeze!
13. Calctic
Multipurpose tool for everyone, Clean and intuitive interface
Download:
Application information
| Category | Productivity |
| Downloads | Over 7,900 |
| Features | Calctic is a comprehensive calculator app offering basic and advanced math functions, unit conversions, currency exchange, and more. |
| Who It’s For | Students, educators, and professionals who need a versatile and user-friendly calculator app. |
- Tags:
- All-in-one calculator
- Multipurpose tool
- Clean and intuitive interface
Calctic is a well-designed calculator app that goes beyond the basics, offering a range of conversion options that cover everything from age to currency. It's a comprehensive tool that includes all the usual conversions, but also boasts more specialized features like an age calculator and a tip/currency converter. While the app is praised for its organization and breadth of features, some users have pointed out a minor inconvenience – the need to enter decimal values using a specific format. Despite this small quirk, the app's functionality and design have impressed many, making it a versatile tool for everyday calculations and conversions.
Pros & Cons
- Well designed app interface
- Standard calculator functionality
- Various conversion options
- Includes age calculator
- Forces decimal input format
- Missing EMI and GST calculator
- Some features untested
Why we chose it?
Calctic is my go-to calculator app because it's packed with features that make it a true powerhouse. I love that it handles basic calculations, unit conversions, currency exchange, and even has a handy history log. It's incredibly intuitive and easy to use, so I can quickly switch between different functions without any hassle. I'd highly recommend Calctic to anyone looking for a reliable and versatile calculator app.