Calculator ++

- July 7, 2017

Everyone

Tools

Contains ads

Offers in-app purchases

( 32,344)

Description

Are you looking for an efficient and easy-to-use calculator?
Do you want to solve both simple and complex problems?
Try Calculator++, a multipurpose calculator app with slick and intuitive user interface!

★ Save your time!
• Access additional features from the main screen of the app using gestures. For example, to use «%» slide button «/» up
• You don't need to press «=» anymore - result is calculated automatically
• Copy/paste with a single button press
• App supports both portrait and landscape screen orientations

★ Personalize!
• C++ has two layouts: standard and engineer. Choose one which suits you best either from the initial wizard or from the application settings
• Set theme you like
• Add home screen widget

★ Do calculations without switching between the apps!
Calculator++ can work in a separate window floating over other applications on your phone

★ Calculate percentages, square roots, powers, trigonometric functions!
Calculator has a big variety of built-in functions and supports adding new user-defined functions

★ Plot 2D and 3D graphs!
Several functions can be plotted simultaneously

★ Use powerful mathematical capabilities of the app:
• Do calculations with variables and constants
• Use built-in functions or add your own
• Integrate and differentiate
• Do calculations with fractions and simplify expressions
• Do calculations with complex numbers

The app supports devices with Android version 2.2 and higher and is open source. The app contains adverts which are shown on the secondary screens. To remove them please purchase a special option from the application settings.

Calculator++ on Facebook: http://facebook.com/calculatorpp
Calculator++ on Vkontakte: http://vk.com/calculatorpp

Reviews

4.6

32,344 total

5 24,569

4 4,271

3 1,545

2 709

1 1,250

Antò De Bonis

Sergey Solevyev, You made the best, professional level calculator for android. With innovative sweeping keys, it is a very fast and versatile software for complex scientific calculations. Every one should buy the cheapest scientific calculator ever made. But ...Please Solevyey , ask someone to write a Intructions summary, a simple HELP file to newbies. I have been struggling to find out how to use it. Every time I discover how rich and powerful is that calculator, I realize how useful would be have instructions to accelerate the process. I am convinced that INSTRUCTIONS would make thousands of users REALLY APPRECIATE this amazing calculator!

Alex C

Every calculator app is pretty much the same thing in a different package. This app offers that and more. I love the popup calculator, and the ads aren't invasive.

Federico Palacios

Writing my own functions is aswome, it would be great to have limits and more advanced stuff but still a pretty good app

Peter Anderson

By far the best calculator app I've tried.

Anchit Agarwal

Calculator for the engineers!

Павел Барздун

Good

User reviews

Antò De Bonis July 15, 2017

Alex C July 12, 2017

Every calculator app is pretty much the same thing in a different package. This app offers that and more. I love the popup calculator, and the ads aren't invasive.

Federico Palacios July 11, 2017

Writing my own functions is aswome, it would be great to have limits and more advanced stuff but still a pretty good app

Peter Anderson July 17, 2017

By far the best calculator app I've tried.

Anchit Agarwal July 20, 2017

Calculator for the engineers!

Павел Барздун July 23, 2017

Good

Jay WrightWay June 4, 2016

Update fail The new update is terrible. I can no longer use my vars and funcs quickly. The ui takes up an unnecessarily large space on my small tablet. The graph increments by unusable numbers, and the axes are scaleable on the separate axes. The 3d graph constantly spinning and you can't stop it. Please at least let us have settings to change these. This was the best calculator app before.

November 21, 2016

Best calc app I've found yet So many great little QoL features I never knew I wanted. Only reason it's not five stars is the secondary button functions can be a bit fiddly, but by no means a deal breaker. If you're looking for an awesome calc, you've found it.

Tor Saxberg April 13, 2017

The fastest, most compact, user friendly calculator. suggestions: The history is too accurate; only save on pressing clear. Operators and delete should encapsulate everything highlighted (such as square root(HL) or (HL) +...) and inputs should replace the selection. Then swiping across the input should immediately highlight to speed up selection. (this would make the calculator way faster). Finally, add used variables to facilitate entering the same expressions in an equation.

Christopher Wood June 7, 2017

Beats other calculators with features and interface - or it would do if not for the numerous bugs. It's unreliable as a calculator, giving wrong answers, that makes it rather useless. Old review criticisms; No statistical functions. Function programming is great except there's no way to export/import/backup functions. Bugs: 2^2^2^2^2=infinity but √(2^2^2^2)^2^2=4 294 967 296. «Numbers are copy/pasted with spaces. 4 functions don't have descriptions. I lost a bunch of functions I'd made (an error message is displayed every startup) - I'm guessing because either they had digits in the name or because they used other functions?

Anthony Leone September 24, 2016

*BUG REPORT* Don't know if it's a bug or oversight when coding, but i noticed you can't convert negative temperatures using the conversion tool.. 0 is the lowest temperature you can convert.. It also doesn't seem to use PEMDAS rules while typing equations like other calculator apps let you do.. For some reason my device doesn't seem to come with a calculator, and this app seems to do a lot for its apk size so i decided to go with this. I've only used it for basic functionality but it seems to work fine so far.. I do wish it had similar functionality as stock that lets me swipe left/right to switch between basic and advanced .though

Lee Leavitt November 16, 2016

Number formats are off Number formats do not match examples. Decimal numbers stay in decimal format even when engineering or scientific is selected. Didn't have the problem when I first used it 2 years ago. Very frustrating.

James Harrang March 9, 2017

Really top notch software. An excellent balance of usability and complexity with a VERY well thought-out interface. I use this frequently for back-of-the-envelope engineering calculations in the lab and almost always come up with an answer before anyone else.

Benjamin Scherrey April 1, 2017

Was a great app before. Now, no matter what mode I'm in, I can't get a value higher than 99,999 before it switches into scientific exponent format which is absurd. Basically makes it useless to me for now. Hopefully this can be fixed.

Fedor Chukharev July 9, 2017

Updated UI is worse Plotter changes are awesome, but sudden redesign is awful. Takes a lot of time to remember where new buttons are. Old version was best, in my humble opinion. Maybe you can add legacy design support?

Robert Summers May 29, 2016

Takes a little getting used to but... Takes a little getting used to but this is the best free calculator I've used so far. Used this in my Calc I, II, III, and Differential Equations classes. I've tried the TI-83 emulator, which works good, but it's a little cumbersome having to flip through all the screens without having a fully functional touchscreen layout. Big plus to this calculator is it almost completely eliminated that. Only downside I've noticed is that it uses a little more battery than I'd like. All in all....GREAT APP!

Henry Choi January 18, 2017

If you're a math, science, or engineering major, this calculator is perfect! While simplistic, the drag select method enables the user to use all the features on the same screen. Furthermore, it provides numerous and customizable functions and constants and graphing features. Too good to be free!

Kasper Tulstrup July 28, 2016

Widget opens keyboard! The calculator uses a text marker, so my phone opens the keyboard everytime i go to my desktop, while the widget is on there. This is very annoying and needs a fix! Otherwise i love this calculator!

Tom Knight September 10, 2016

Everything is in the wrong place. I like some things about this calculator. The drag shortcuts are good. But all the buttons are in stupid places - the equals key for example, the previous calculation isn't automatically cleared, functions are hard to find, and it has no ANS key. All this makes it super fiddly to use and recursive calculations are impossible. It's just way too impractical.

Luke M August 28, 2016

Excellent calculator Probably one of the more feature loaded calculators out there with a sleek interface. The only thing I'd like to see is equation view (where rational expressions and the like are shown as actual rationals, one part over the other), and a scrollable answer window instead of a separate history window. But these are minor. As a calculator, it more than does the job.

Clint Givens August 7, 2016

Graph plot for x^(1/3) is incorrect It shows a weird curve above y-axis for negative x-values, a strange behavior which undermines my confidence in correctness of all calculations and plots

Andrew Barabas December 29, 2016

The Best A scientific calculator that's made for a touchscreen interface. I no longer have to pick between an easy interface that I have to swipe between screens with and one that has all advanced options on one screen (a la a physical scientific calculator).

Max Schäfer July 10, 2016

Extremely useful! Calculator with all the tools I could ask for, not only does it look extremely good, work very well and have features like 3d graph plotting, it's also free. Very good app, thank you!

Tom Field May 18, 2017

Very useful scientific calculator. I use it regularly. Short time to get to know how it works, then things like flicking up to get sin() become natural and work well.

Justin schaffold July 9, 2016

It's ok Not quite as powerful as it seems I was hoping that there would be functions that could loop with conditionals. The swipe user interface is difficult to use compaired to a press hold and select type. No eqn solving that I could find. The plotting is ok but no max or min, no intercepts displayed, the 3d looks cool but not very useful.

Michael L. Duong July 22, 2016

Beautifully designed Love the calculator and all it can do. All it needs now is the animation when you do a delete action. Then it would be perfect. Even though it is perfect without it. It does so much. Best calculator ever!

Alaric Bergeron October 29, 2016

The best This calculator blows all others out of the water. It's just awesome, and free! The swipe controls are amazing, even more efficient than an actual physical calculator!!

Joe Hacobian December 19, 2016

The BEST calculator for freestyle-math THE BEST freestyle math calculator!!! Symbolic Entry + Instant calculation!!! Other ESSENTIAL features it has: 1.) Proper parentheses support WITH graduated grey-scale shading for nested sets. 2.) Multi-function buttons allowing for scientific notation to be handled without additional menus. 3.) Nice history (though either a configurable keypress activity threshold or a default of 2 seconds would go a long way towards eliminating entry-noise in the history i.e EVERY keypress is needlessly recorded.

Andy X May 26, 2016

Exponential number display stopped working correctly. If you calculate 2^62 - it displays OK. But if you do 2^64 - it will display it in exponential format regardless of the setting. That's no good - previously it used to display exact numbers regardless of their length

Khant Nyar Paing April 25, 2017

I really loved the old one. I can expand or compress a graph easily. No need to delete every single old graph one by one so that I can draw a new one. But now, it has downgraded.

Vlad Trishch April 22, 2017

The app by itself is awesome, but I can't get used to its new design. In the previous versions I could easily change number bases, use pi value, switch deg/rad and use other cool staff on the 4-9 buttons. It was much more comfortable than it is now. Could use please create a new theme to recover an old appearence or tell me how can I do it without downloading an older version of the app?

Anand Chitrao July 16, 2016

This app lost its ability to plot imaginary curves as it used to plot it in lower versions. If the new plotter could plot equations like x^2+y^2=1 rather than plotting expressions like √(1-x^2) then it will be great

Jakub Matuszczyk June 10, 2017

Graph is using some weird numbers (1.2, 3.7 etc) on axes instead of 1, 2, 3 and ao on. You can't zoom in/out only one axis, whole graph is zooming, but it was available. There are bugs in function plotting e.g. x^(1/n) for different ns shows some weird curve above x axis on the left side of it. Curves tend to move a bit or are inaccurate. For function stated above f(0) doesn't equal 0, but something a bit above 0. I don't trust this app when using it.

Oliver Isenrich April 22, 2017

Easily the best Android calculator I've found to date. Multi-mode interfaces support most users with particular emphasis for general purpose users (basic mode) as well as those needing of more complex functionality (vis-á-vis engineering/scientific mode). While Google's Android calculator (it's newest iteration of it, that is) probably takes the cake when it comes to intuitive UI and usability, its absence of the higher-order functionality many require explains my ranking.

Baltazár Radics June 9, 2017

Really cool! I don't know if there is a way to make the floating calculator run on startup but if there is, please add an option to do it because I use it a lot.

Bearcat Şándor December 10, 2016

A great calculator The best calculator that I've found so far. The quick access to buttons via swiping is great and makes entering calculations faster. Things that would make it better: the ability to add my own conversions and to display formulas in textbook format.

Shanjul Shrivastava June 2, 2016

Unable to perform Definite integral... I wrote this... f24((sin(x)+cos (x)), x, 2, 4) and nothing happened... .. Plz help... Without limits it worked perfect . But with limits...how to proceed ?Also where is equation solver... And matrix solver ?

Angel Peltekov July 12, 2017

It's probably the best calculator you'll find on the Play Store. It has all the things you will ever need in just one small package.

Jason Brubaker May 30, 2016

Best free calculator there is. Hands down blows away the competition with its premium features and floating window mode.

Abhijith Rajiv July 16, 2016

Best Calculator app Advanced enough for me and once you get used to the swiping it is much faster to use than most of the other calculator apps!

What's New

Stability and performance improvements.

Additional information

Updated

July 7, 2017

Installs

1,000,000 - 5,000,000

Current Version

2.2.5

Requires Android

4.4 and up

Content Rating

Everyone

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Interactive Elements

Digital Purchases

In-app Products

$3.99 per item

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Offered By

Sergey Solovyev

Developer

Visit website Email se.solovyev@gmail.com

Knektgatan 26 587 38 Linköping Sweden

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