Best Calculator Apps

Best Calculator Apps

There are dozens of calculator apps in the App Store and Play Store that may overwhelm you. Whether you are a student, business owner, engineer, scientist or just an average person working on your taxes, a calculator app is an essential tool to have on your iPhone, iPad, Apple Watch and Android devices. A good calculator app makes life easier and helps prevent errors. 

A handy calculator app will help you to do everyday calculations whether it's shopping, or homework or balancing chequebooks or calculating taxes. If you want to solve simple or complex calculations, advanced features like graphing or unit/currency conversion or scientific functions like algebra, integrals will be useful in the multi-purpose calculators. We’ll focus more on some of the scientific and graphing calculators you can find for smartphones and tablets.

Here is the list of the best calculator apps on Android and iOS that will help you through calculations as well as using it in daily use.

iCalc is an elegant, easy-to-use financial, scientific, and graphing calculator with a built-in ChatGPT-powered math bot for powerful extra support. It includes the functions you would expect from an advanced calculator, including logarithms, trigonometry, statistics and more.

iCalc is the ultimate calculator app with financial, scientific, and graphing calculators all wrapped into one. This calculator offers basic calculations, such as addition, subtraction, multiplication, and division. It does allow you to do scientific operations, such as trigonometric, logarithmic, and exponential functions. 

This calculator app will be so beneficial by showing math problems worked out with intermediate steps which will help you understand the concepts. It’s a very powerful tool that can even solve matrices, equations systems, and graph. The graphs displayed are beautiful and it generates them automatically with x and y values. iCalc Calculator app is an essential tool for school and college.

Price: Free with in-app purchases

Devices: iPhone, iPad


If we missed any of the Best Calculator Apps, tell us about them!


The Percentage Calculator

2. The Percentage Calculator

The Percentage Calculator - 5 star rating

(Android, iPhone, iPad)

Percentage Calculator is one of the simple to use and lightweight calculator apps. Percentage Calculator app makes calculating percentages easy and quick. The app covers fourteen different calculations and scenarios involving percentages.

From simple calculations where you need to find a percentage reduction to complex ones, such as calculating compound interest, this app guides you where to enter the relevant numbers and then generates the answer.

With Percentage Calculator, you can solve simple and complex math problems easily. The most noticeable thing about Calc is its user-interface which looks clean and well organized.

Price: Free with in-app purchases

Devices: iPhone, iPad, Android



Calculator +

3. Calculator +

(iPhone, iPad)

Calculator+ is one of the most popular calculator apps offering several different modes and calculator styles, supporting scientific, handwriting, polynomial, linear, graphing, and currency. This calculator is one of the best if you consider interface design and ample functional features. This modern scientific calculator is very easy to use since it has fairly large buttons. Figures are displayed in bold type for easy identification.

This calculator app may help younger students who are just getting started with build some confidence with numbers. Another bonus of unlocking the full version is the customization, which lets you choose from several different themes to change up the look of the calculator. It also works on Apple Watch.

Price: Free with in-app purchases

Devices: iPhone, iPad, Android



Maple Calculator: Math Helper

4. Maple Calculator: Math Helper

Maple Calculator: Math Helper - 5 star rating

(Android, iPhone, iPad)

The Maple Calculator is a free app-based calculator from Maplesoft, the company behind one of the world’s most powerful math engines, that powers NASA, Google and Pixar. More powerful and versatile than a scientific calculator, the Maple Calculator makes it easy to enter, solve, and visualize mathematical problems from algebra, precalculus, calculus, linear algebra, and differential equations, for free. You can even enter problems using your camera, so you can check your homework with a click of a button.

Maple Calculator is a powerful tool for students, teachers, engineers, scientists, and others who need advanced mathematical problem-solving. Whether you have university-level math problems or need help with simple calculations, this powerful calculator provides step-by-step solutions to your math issues.

Price: Free with in-app purchases

Devices: iOS, Android


Financial Calculators

5. Financial Calculators

(Android, iPhone, iPad)

Financial calculator is one of the most complete financial calculator app which can both save and make you money making it one of the best calculator apps. Financial calculator is a great option for both students and business owners. It’s very useful in handling accounting, investments, mortgage and finance applications and other formulas useful for business or finance.

Financial calculator app includes a series of other calculators within it: TVM Calculator, Currency Converter, Loan Calculator, Compound Interest Calculator, Credit Card Pay Off Calculator and more calculators. Only Currency Converter needs internet access. It helps you to calculate your desired contribution to your 401k account, auto loan, interest rates and start putting money away as early as today. 

Whether you’re a professional number cruncher, a finance undergraduate, or someone who likes to take care of the state of their finances, this app will help you with your calculation needs.

Price: Free with ads

Devices: Android, iPhone, iPad


MyScript Calculator

6. MyScript Calculator

MyScript Calculator - 4 star rating

(Android, iPhone, iPad)

MyScript Calculator is one of our favourite calculator apps for iPhone and iPad that allows you to write whatever math equations you need to on your iDevice's screen. After doing so, MyScript Calculator will digitally convert your handwritten equation into text, while at the same time giving you the solution to the math problem. The feel is completely natural as if writing on paper, and answers are presented in real-time. There is a redo/undo function, and the app itself works incredibly fast. 

With the large iPad display, the user can see even more steps of the process at a glance, with detailed annotations on important rules and tips of note.

MyScript Calculator app can perform basic mathematical functions including powers, roots, exponentials to advanced functions like trigonometry, logarithms and more. This calculator app is also great for quick calculations on-the-go, like when you’re at the grocery store.

Price: Paid

Devices: Android, iPhone, iPad


Desmos Graphing Calculator

7. Desmos Graphing Calculator

Desmos Graphing Calculator - 5 star rating

(Android, iPhone, iPad)

Desmos Graphing Calculator is one of the most popular graphing calculator app available in the app stores and one of the best overall calculator apps. The Desmos Graphing Calculator automatically solves and graphs equations for users. The calculator can plot a variety of different equations, from lines to parabolas and more. It can take a set of data and create a graph.

It supports functions and inequalities. This calculator app can also graph exponents and logs, trignometry functions, precalculus and calculus problems, and even statistics and probability. The uses of Desmos are unlimited in the math class. Desmos iOS, Android, and Google apps allow users to access the calculator without using Wi-Fi or data are available at no cost.

Price: Free

Devices: iPhone, iPad and Android


RealCalc is a real, functional scientific calculator app for Android mobile devices. When you first use this calculator app, you'll notice that it looks just like the standalone scientific calculator. Features include traditional algebraic or RPN operation, unit conversions, percentages, various display modes, and more.

A calculator help section gives written instructions on how to use each of the ten modes, and the calculator holds a results history in its memory. The button layout and functions feel familiar, and the act of punching out calculations just seems natural making it one of our favourite calculator apps. 

Price: Free

Devices: Android, Windows


Google Calculator is a pretty simple calculator, but it's nicely designed and easy to use. You can add, subtract, multiply, and divide (of course), but there are also basic trigonometric, logarithmic, and exponential functions.

Google’s Calculator is a perfect illustration of good use of material design and user experience. It even has an Android Wear version.

Unless you’re a student, a mathematician, or an accountant, you probably don’t need a super complicated calculator app. A lot of people only need a simple calculator and this Android calculator app is perfectly capable of doing the job.

Price: Free

Devices: Android


The Calculator

10. The Calculator

(iPhone, iPad)

The Calculator app is our answer to the need for a great and reliable calculator app. With millions of downloads and great reviews, it is the number one free utility app and most feature-rich calculator app for iPhone, iPad and Apple Watch and Android devices, and has been downloaded by millions of users around the globe.

You can download the calculator app now, and join the scores of users impressed by the calculator’s ease of use and extensive functionality options. Built-in currency converter feature is very useful to check the currency in another country. This is a very convenient feature if you have an international job, or if you like to travel.

The free calculator app offers two beautiful designs by default. You can personalize your calculator with additional themes (50+) which are available with an In-App Purchase or by unlocking themes one by one which is why it is one of our favourite calculator apps.

Price: Free

Devices: iPhone, iPad


The right calculator is going to vary based on your needs. While all of the apps on this list are excellent choices, some are going to be geared for calculus, graphing, or other specific tasks while some may just want a calculator for paying the bills or finding how much to tip.

There are free calculator apps available with limited features. So before you pull the trigger it's worth reading the App Store description to get the full picture and find out if that is what you want.

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