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Here are the best calculator apps for iPhone, iPad, and Apple Watch to do math anywhere. The stock calculator app on your iPhone can be useful for simple calculations, but it doesn’t have any more advanced features or functions. If you often need to do complicated math, like for your business or because you’re a student, accountant, scientist, etc., it’s a good idea to look into other options. We use the app for the calculator almost every day.
But we can all agree that most device makers don’t put much effort into making a good calculator app, and Apple is often the worst offender. Who needs a pocket calculator when your smartphone has one of the best calculator apps for iPhones? Even an average phone can do more math than a handheld calculator, and you only have to carry one device instead of two.
Of course, most phones come with their own best Calculator Apps For iPhones already installed. Even though they are good, they don’t have as many features as the best calculator apps for iPhones, especially if you do a lot of scientific calculations. From this list of the best calculator apps for the iPhone, you have a lot of great options to choose from.
Best Calculator Apps For iPhone
Calzy

This app is a great calculator for your iPhone, iPad, and even your Apple Watch. The Memory Area is one of the best parts of the app because it lets you store multiple values and use them in any session with a simple drag-and-drop. You can also put a calculation’s date and time in a bookmark so you can look at it at any time.
You can also write out calculations in English and 65 other languages, which is a great feature. If you want to switch from a basic calculator to a scientific calculator, you can do so by holding down on the screen for a while instead of turning the phone to landscape mode. There are also a lot of other buttons with Haptic Touch that let you quickly get to other features.
PCalc

PCalc says it is the “best calculator” in the App Store and has a price to match. If you think $10 is too much for a math app, think about how much a scientific calculator that can do everything PCalc can do would cost. It works on both the iPhone and the iPad, and you can even get an app for the Apple Watch if you want to.
The app is for “scientists, engineers, students, programmers, or anyone else who wants a calculator with a lot of features.” From what I can tell from the reviews, this is the best calculator on the App Store. The app can be changed to fit your needs and can handle fast number entry. Many operators, constants, functions, graph support, and other things exist.
Calculator & Math Solver

Calculator & Math Solver is a simple and basic app that can be used instead of the iPhone’s built-in calculator. It gives you four tabs: a basic calculator, a scientific calculator, a fraction calculator, and a currency converter. We liked this app because you can use voice dictation to tell the calculator what equations to solve.
It also shows you the history of your calculations so you don’t lose track of them. But the only ones that are really free are the basic calculator and the scientific calculator. The rest, like the currency converter and fractions calculator, let you do three calculations for free. You need to buy the pro version if you want to do more.
ClevCalc

One of our favourite iPhone calculator apps is ClevCalc. It has an easy-to-use interface that looks nice. The best thing about this app is that it gives you a lot of calculators, not just the basic calculator and the scientific calculator. ClevCalc has calculators like a GPA calculator, a loan calculator, a VAT calculator, an ovulation calculator, etc., so you don’t have to look for calculators on your browser when you want to calculate something specific.
You can also free change the startup calculator and themes on this calculator. This app has ads, but they don’t get in the way. Also, they are at the bottom of the app in the form of a banner. But in the pro version, the ads are gone and the “review this app” pop-up is turned off. But if you want to try out the pro version before buying it, ClevCalc lets you do so by watching an ad video.
Soulver

If you use a calculator a lot but don’t need a lot of extra features, Soulver is a great choice. At $1.99, it’s not nearly as expensive as some others, and it has an easy-to-understand way of showing information and doing calculations. It really can make it easy to solve a set of math problems with many steps.
Soulver’s main idea is that the calculator is in the bottom third of the screen and a log of your operations and results is in the top third. The results of one line can flow into the next line, and you can see that very clearly. Then, you can change something anywhere and see how it affects the whole chain of operations.
Calcularium

Calcularium from InVooDoo has some cool controls and powerful tools for entering and editing your calculations. The end result is an app for a calculator that is easy to use and has some great features under the hood. Users can plug in the numbers using the keyboard or by speaking or taking a picture of the equation.
They can then label each number and variable to make it easy to find and use. You can change the order of the parts of each equation by using gesture controls, and you can save formulas and variables or turn some variables into their own sub-equations. The calculation has many features, and the built-in video tutorials that Siri talks through are one of the most useful ones.
Numerical 2

Numerical2 is an app that has nothing like it. The app makes it faster to type by getting rid of the equals button and adding brackets to operations automatically. But it’s not only about speed. Scientific calculator functions, fraction operations, and special numbers like Pi, E, and infinity are all covered in this field.
The app can be used in landscape mode and supports split-screen multitasking. It also comes with a custom keyboard for doing math in another app. Numerical also comes with several themes and a way to make your own. Currently, this is one of the best Calculator Apps for iPhone that you can download from Apple Store right now.
EduCalc Classic

No point in spending money on the TI-83 anymore (sorry, Texas Instruments), since the EduCalc Classic calculator is free (or you can pay a dollar to get rid of ads)! The scientific calculator in Free Graphing Calculator lets you do things like square root, cube root, natural log, log base 10, permutations, and more.
Then, it has graphing features that let you plot up to four equations at once. You have full control over your graphs, which you can move around and zoom in and out of with your fingers. If you want a good graphing calculator app, you don’t need to look any further. You’re good to go with the free EduCalc Classic calculator.
Final Words
There are dozens of best Calculator Apps for iPhone in the Apple Store and Play Store, which may be too many for you. You need a calculator app on your iPhone, iPad, Apple Watch, or Android phone if you are a student, business owner, engineer, scientist, or just a regular person doing your taxes. A good calculator app makes things easier and helps keep mistakes from happening.