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These Apps Make Calculating a Breeze

These Apps Make Calculating a Breeze

As much as we may dislike math, it's a basic necessity in life, no matter who you are. Fortunately, these apps make it easy for you to do whatever calculations you need to on-the-fly!

Simple Calculations

While we have a built-in calculator on iOS, sometimes it just doesn't cut it, or the aesthetics don't fit the bill for you. These apps are great replacements and get the job done.

iris calculator - Do more

iris calculator - Do more

Guerson Perez

iris was designed to be used as a simple calculator out of the box, and give you the possibility to take it further with all the built in features as you need them. It's minimal design makes it easy and intuitive to use, despite it's many features you'll get familiar right away.

- Easy to read and write syntax.
- Save results for later.
- Name results.
- Use saved results as variables.
- Create lists with a set of results.
- Smart parenthesis.
- Tap solved bubbles to see the full equation.
- Choose from 10 additional themes! Completely free.

With iris you will be able to do more in less time.

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Haseba Calculator

Haseba Calculator

Ahmad Almazeedi

While building Haseba, we focused most of our energy on the user interface. We think that the key to any great app is a beautiful, and simple design that works seamlessly with the app's features.

Key features:

• No Ads​!

• History: Swipe up or down in the display area to navigate through your previous calculations.

• More Mathematical Functions: Swipe right on the keypad to access mathematical functions like (Pow, Ans).

• Themes: Swipe right on the keypad then tap 'Themes' to show a menu of 12 different themes.

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Solve Equations In New Ways

Equations can be rather scary, but these apps help you find the solution in all new ways.


Point, scan, and solve equations easily


Scan and solve

For those who want a fast and thorough way to solve equations on their homework assignments.

Photomath is a smart calculator app that does something unique and special, and is an invaluable tool for students. Just launch the app, point your camera at your equation, scan it, and Photomath will come up with the answer. But that's not all — rather than just give you an answer without showing you how it arrives to that solution, you'll get detailed step-by-step explanations of how to arrive at that answer. At the moment, Photomath has full support for arithmetics, fractions, decimal numbers, linear equations, equation systems, and some functions like logarithms. While you can have Photomath solve more complex problems like integrals, trigonometry, and derivatives, these don't have support for step-by-step explanations just yet.

Why we love it

We remember how tough equations can be in school, and wish we had something like this around back then. Being able to take a photo of the equation and then have it explain how to get the answer is super helpful.

Calculate and Convert at the Same Time

If you want a simple calculator that gets the job done, but need to do some basic unit conversions too, then make sure to check out this app.

Unitify - Unit Converter
Unitify - Unit Converter

Unitify - Unit Converter

Zijun Huang

Unitify is a fast, convenient unit and currency converter.

You just need to input the value you want to convert and all results of related units will seamlessly show in one list automatically, instantly.

All units are grouped for quickly locating. Units are grouped by imperial, metric, and other categories. Currencies are grouped by continents.

There is a built-in calculator, you can add, subtract, multiply and divide directly inside the app.

Just stop remembering those stupid formula !!

Currency, Temperature, Velocity, Weight, Length, Area, Volume, Power, Energy, Force, Pressure, Resistance, Time, Time Zone, Digits

With Unitify, you will know:
- There is 86,400 seconds in 1 day
- The binary of 25 is 11001
- 37℃ equals to 98.6℉
- 70 yards equals to 64 meters
- 100 U.S. gallons equals to 440.5 litres
- 100 acre s equals to 40.4 hectares
- 1 karats equals 0.2 gram
- € 200 equals to $ 264
- What time is it in Tokyo
- ......

- Built-in calculator
- 15kinds of units, multiple currencies
- Units are grouped, support "Show/Hide"
- Convert automatically and instantly
- All results will seamless show in one list
- Very easy to use

more info
CalConvert: Currency Converter
CalConvert: Currency Converter

CalConvert: Currency Converter

Currency Converter & Calculator, Taschenrechner, Calculatrice, Calculadora

Download CalConvert, the #1 advanced scientific calculator and currency/unit converter in the App Store.

Simple, free and easy-to-use. Solve complex math equations, figure out cooking volumes, and have international foreign currency exchange rates all at your fingertips.

*Useful & Powerful Tool
- Advanced calculator and scientific/mathematical functions.
- History Tape: All calculations are saved and can be copied, used and shared.
- 27+ categories and over 600 units to convert; metric to imperial and many more.
- Access 150+ currencies with their respective country flag without the internet.

*Elegant & Intuitive Interface
- Equation Preview: Current Equation is displayed below the result.
- Easily save frequently used units of measurement and currencies.
- Customize CalConvert with a variety of smart, colorful skins.

Available Categories:
Acceleration, Angle, Area, Astronomical, Cooking Volume, Data, Data Transfer, Density, Energy, Flow, Force, Frequency, Fuel, Length, Luminance, Power, Performance, Pressure, Radiation, Speed, Temperature, Time, Torque, Typography, Viscosity, Volume, Weight, Currencies

Available Currencies:
Bitcoin, Euro, US Dollar, Canadian Dollar, Chinese Yuan, British Pound, Japanese Yen, Australian Dollar, Afghan Afghani, Algerian Dinar, Argentine Peso, Albanian Lek, Angolan Kwanza, Armenian Dram, Aruban Florin, Azerbaijani Manat, Bahraini Dinar, Barbadian Dollar, Belize Dollar, Bhutanese Ngultrum, Botswanan Pula, Brunei Dollar, Burundian Franc, Bahamian Dollar and many more.

Supports 24 Languages:
English, Deutsch, Dansk, Français, Nederlands, Magyar, Suomi , Português, Italiano, Español, Русский, Svenska, Slovenčina, Bokmål, Türkçe, Ελληνικ, Polski, Čeština, Română, Hrvatski, Українська, 日本語, 简体中文, 한국의

Thank you using CalConvert! Have questions, problems or feedback?
Email Support: [email protected]
Visit us:

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Calculator Smart
Calculator Smart

Calculator Smart

Miroslav Otsedarski

Calculator Smart is the greatest, most accurate calculator ever made, with stunning modern interface. You can make everyday simple calculations or complex computations straight from your iPhone, Apple Watch, iPad or Apple TV.

An accurate and flawless calculator is a must-have app for everyone’s device, so don’t hesitate and grab the awesome Calculator Smart for FREE!

• Standard and Scientific mode with more than 30 scientific operations
• Slide to delete wrong digit(s)
• Copy & Paste - Double tap or Long press on number field and choose Copy or Paste option
• Three digit easy to read grouping format
• Locale-specific Decimal and Thousands Separators
• Output in 2 formats: Scientific notation (mantissa/exponent) and Decimal floating point
• Degrees and Radians calculations
• Easy to use memory buttons
• Parentheses and nested parenthesis for complex equations calculation
• Gorgeous big buttons for ultrafast calculations
• Sound when pressing a button
• Today Extension - Do your calculations straight on your Lock Screen without unlocking the device
• Message Extension - Easiest way to share the result of your calculations
• Apple Watch App & Complication Shortcuts
• Support for Multitasking - Slide Over, Split View (iOS 9 or later)
• Support for External Keyboard - You can do the math with any connected Bluetooth or Smart Keyboard
• Support for 3D Touch - Copy Last Result without launching the app
• Colorful skins for every taste
• Different App Icons - App Icon changes to match the color of the chosen skin (iOS 10.3 or later)

Available on Apple Watch, iPhone, iPad & Apple TV

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Convert - Unit and Currency
Convert - Unit and Currency

Convert - Unit and Currency

Raphael Odermatt

A simple but powerful unit converter. Translates hundreds of physical units and dimensions quickly and easily. The currency converter features daily updated exchange rates for over 130 countries.

CUSTOMER REVIEWS: 4½ (over 1000 reviews world wide)

*** Apple Watch ***
We bring the converter including currency exchange rates to your Apple Watch. Convert units and currencies directly on your watch.

▶ Intuitive and efficient user interface
▶ A total of 398 units in 17 categories
▶ Shoe size conversion
▶ Calculator
▶ Daily updated currency converter
▶ History charts for all currencies
▶ Univeral iPhone/iPad app
▶ Landscape support for iPad
▶ Copy & Paste
▶ Drag'n Drop your favorites to the toolbar
▶ Frequent free updates
▶ iPhone 6 (plus) ready: Optimized for 4.7'' and 5.5'' screen

▶ Currency
▶ Length
▶ Weight
▶ Temperature
▶ Speed
▶ Energy
▶ Angle
▶ Pressure
▶ Time
▶ Volume
▶ Area
▶ Power
▶ Data
▶ Torque
▶ Radioactivity
▶ Fuel consumption
▶ Force
▶ Shoe size
▶ Calculator

Available upgrades with subscriptions:
* 'Advanced features': $0.99 per 6 months
No ADs, Currency Exchange Rates, Charts

- Payment will be charged to iTunes Account at confirmation of purchase
- Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period
- Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal
- Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase

- Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication

Privacy policy:
Terms of use:

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Impala Studios

Your answer is only seconds away. Try it, you'll like it! Convert 250+ Units; Currency, Length, Speed and many more. Easily discover all capabilities and get your results faster. You want to convert it, it's in this app!

Whether you travel, work international or you are at school; Converter' offers a simple UI to convert to any imaginable unit. For maximum convenience, Converter' has a built-in Calculator and offers Split View Support.

'Living overseas is much easier'
'Really helps with your spending habits'
'Use their metric Weights & Measures while in stores and restaurants'
'Makes my trip easier'
'A dream app for travelers'
'Converter' does it all'

• Length - Width
• Area
• Fuel/gas - Mileage
• Currency
• Liquid Volume
• Power
• Mass
• Data
• Data Computer Transfer Speed (Bytes, MB, KB, GB)
• Temperature
• Speed
• Force
• Frequency
• Pressure

Currency exchange rates updates are downloaded every 15 minutes when you use the app. To stay up-to-date the download process uses a small amount of data, 1-2kb Internet connection is required. Don't worry if you have no internet connection, Converter' works Offline as well. Converter' will save the data of the latest successful update and allows you to use it in your calculations. Exchange rates for all 170 world's currencies are available, including Bitcoin!

• Real-time conversion
• Support 14 conversion categories and 170 currencies
• Automatic currency exchange rate refresh, or on request
• Create your favorite units list
• Converting & Easy switch between units
• Results are up to 10 significant digits
• Unit names and abbreviations both displayed
• Support for compound units like Pounds + Ounces or Feet + Inches
• Built-in calculator
• Works offline (saves last updated currency exchange rates)
• Split View support for iPad Air 2 and iPad Pro
• 3D Touch support

As a Platinum Member you receive the following ongoing value:
• Ad-Free
• Instant Currency Updates
• Premium Customer Support

The subscription is charged to your iTunes account at confirmation of purchase. Subscription is for a period of one month and automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Your account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. Subscriptions may be managed by you and auto-renewal may be turned off by going to the your Account Settings after purchase. The cancellation will take effect the day after the last day of the current subscription period, and you will be downgraded to the free service.

For our terms & conditions go to

As always, we appreciate your feedback.
Please keep sharing your experience to [email protected]
Do you love our app? Please rate and review us in the App Store!

-- Currency, Miles, Inches & more --

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Graph Those Calculations

With complex equations come complicated graphs. Get the job done with this great app.

PocketCAS Mathematics Toolkit

PocketCAS Mathematics Toolkit

Thomas Osthege und Daniel Alm

PocketCAS is the most advanced mathematics application for iPhone and iPad. It can help you with any kind of math problem, from elementary school all the way up to calculus, algebra and statistics. It can replace your old graphing calculator, help you with your homework, and assist you in any kind of calculation for university or work.

This app is an indispensable tool for every student, teacher and engineer. It makes college-level calculus and algebra easy and can help you in a wide range of cases. It provides features comparable with a TI-89 calculator and combines them with a modern, intuitive interface and incredible graphics capabilities.

- 2D Plots: Quickly create 2D cartesian, implicit, polar or parametric plots.
- 3D Plots: PocketCAS draws stunning 3D plots! Supports x-y cartesian plots, parametric area plots and parametric line plots.
- Animated plots: Use the variable 'anim' to animate any plot over time.
- Calculus: Calculate limits, derivatives, integrals and taylor expansions.
- Linear Algebra: Invert and multiply matrices or calculate determinants, eigenvalues and much more!
- Algebra: Perform integer and polynomial factorization and division, use permutations, and more.
- Solving: PocketCAS will solve almost any equation for you. It even supports systems of linear equations and ordinary differential equations!
- Scripting: PocketCAS' C-style scripting language allows you to define custom functions, use conditional expressions, loops and also supports recursion.
- Physical Units: Constants and units are provided out of the box. Simply enter physical formulas with the corresponding units and convert results to the units you prefer.

- iCloud support: Sync documents between your Mac, iPhone and iPad!
- Export: Print or export plots, entries or the whole document as PDF!
- Document Import: Load functions and variables from existing documents to re-use your work in other calculations.
- CSV Import: Load tabular data and process it in CSV format!
- Mathematical keyboard: PocketCAS' mathematical keyboard is unmatched on the App Store.
- Help: All functions are explained in the built-in reference. If you're stuck, there's plenty of tutorials as well as a manual ( to get you going. And you can always contact our support ( for help!
- Offline computation: PocketCAS doesn't need an internet connection to calculate results.

"This program has an incredible amount of power for such a compact program. I teach high school math, and this program can work with all sorts of expressions, graphs, and help check my work. Definitely worth it!"

"You will love this calculator. It's powerful to calculate everything, doesn't matter you're a high school student or college student. Specially for the people who like to solve problems with graphs!"

"This app is so powerful and slick looking. It is totally amazing and what it can do."

"One of three Apps I use when teaching A Level maths. Have recommended to numerous students. Excellent."

"This is one of the best. The CAS capabilities are compatible to only two other apps, and this one is all offline and includes countless additional features. It's never steered me wrong and is the first thing I go to when I'm in a hurry to figure something out. If you're a student this is pretty much as good as it can get."

"I am 8 years old and this App is awesome! It helps you learn calculus quickly. It's a work of art!"

GraphLock Graphing Calculator

GraphLock Graphing Calculator


GraphLock is the ONLY scientific and graphing calculator app designed to be used in classrooms and on exams due to its unique Lockdown mode!

This app will turn your device into the fast and powerful tool you need to succeed in your math, physics, science and engineering classes/exams. Plus you never have to carry a separate calculator again! GraphLock is designed for education, studying at home and test environments.

The unique Lockdown feature disables phone functions (calls, texts, notification, internet, etc.) and turns the device into a calculator until the timer runs out or the authority figure (Teacher, Parent, Proctor) unlocks the user.

NOTE: You can use the calculator while not in Lockdown anytime, anywhere. You don’t need the internet and your device functions as normal.

Teachers - are you struggling to keep students off their phones and on task during class?

* You can create a Lockdown session and set a timer, then your students can only access the calculator on their device, meaning: no texts, no calls, no internet, no other apps!

* The classroom monitoring platform allows teachers to create classes, start/stop lockdown sessions, customize the calculator, send chats to classes, and get alerted if a student tries to make an emergency call or force his/her way out of lockdown.

* There is also a proctor version ideal for Testing Centers.
Parents - do your children waste time on their phone instead of doing homework?

* Parents can use Lockdown on their children’s devices, taking homework time to a whole new level!

Students - don’t want to spend over $100 on a scientific and graphing calculator?

* Students can simply download the calculator they need, on a device they already have, and use at school for only $4.99 per year

* During Lockdown, a student can make an emergency call if
needed, but the session administrator will still be notified

* The teacher/parent/proctor will not be able to control the
student’s device, nor have access to anything on the device
* No distance restriction

Just Lock Me Mode:
* Use to avoid distractions - set a timer and put yourself in Lockdown


* Graph as many functions as you want
* All graphs color coded
* Chart data
* Pinch to zoom
* Unlimited number of graphs
* Trace the graph to see coordinate values
* Find intersections and roots
* Find min/max points - parabolas, curves, waves
* Calculus - find derivatives at specific points
* Solve quadratic equations
* Algebra formula

* Square roots
* Logs and natural logs
* Exponential functions
* Permutations
* Combinations
* Absolute value
* Trigonometric functions
* And many more functions

* Determinate
* Transpose
* Inverse
* Identity Matrix
* Reduced Row Echelon

* Mean, Median and Mode
* Standard Deviation
* Variance
* Summation
* Correlation
* Quartiles
* Var1(x), Var2(x,y)
* User can store data in lists or directly enter data

* Present Value
* Future Value
* Payment
* Effective Rate
* Time
* Compounding Periods
* Interest Rate

Created by a teacher for teachers, parents, proctors and students

At GraphLock, our mission is to promote equity in STEM education and give all students the same opportunities to reach their full potential!

Student and Parent yearly subscriptions and all other version payments are made via your iTunes account at confirmation of purchase and subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Otherwise the account will be charged for renewal within 24-hours prior to the end of the current period.

Want to use GraphLock at your school? Contact us at: [email protected] and go to for more information!

Tutorials and Demos:

If you have a question, contact us at [email protected]

Curve Plot Graph Calc Lite

Curve Plot Graph Calc Lite

Amran AlQasmi

iCurve Plotter & iMulti Plotter, are of the best graph applications available in the App Store, yet easy to use. they are handy tools essential for doctors, engineers, students and laboratories. Used to plot the mathematical equations, it uses advanced expression interpreter to plot those equation’s curves. Just enter your expressions and the app will do the rest for you, and represents the graphical output instantly on a Cartesian plane. You can always manipulate the graph interactively (zooming in/out, scrolling and tracking). so you can determine the value of (y) for any given value of (x), plus the slope of a curve at that specific point. also you can get the precise numbers using a dedicated Solver UI. and now you can calculate & visualize area under curve for a given interval. you always can get the equation and numerical results in a formatted sheet that can be exported or shared. Minima, maxima & root points are calculated and represented automatically.

► Features:
- Easy expression entry form, with history.
- Specialized numeric & function keyboards.
- Controlling graph look & behavior.
- Controlling properties of Pen, Text, Color for both curves & graph.
- Automatic axes Scaling.
- Zoom in/out, scrolling & Tracking.
- Reset Graph, Origin.
- Graph lock.
- Exportable calculations Sheet.
- Interactively & numerically enterd limits specification.
- Solver & Solved points collection with auto re-calculation.
- POI points collection with auto re-calculation.
- Live Curve Slope tracking & calculations.
- Precision Control.
- Area under curve presentation & calculations, with interactive tagging.
- Certified by EAS Organization.

Easily Do Financial Calculations

Having to deal with financial calculations can be a real pain, but these apps make everything much more tolerable.