Calculator ++

- May 24, 2016

Everyone

Tools

Offers in-app purchases

( 30,903)

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

4.5

30,903 total

5 23,276

4 4,184

3 1,524

2 694

1 1,225

Christopher Wood

Nice but buggy Beats other calculators with features and interface. No statistical functions though. 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?

Jay Wright

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.

Tor Saxberg

Needs linear matrices The fastest, most compact, user friendly calculator. But it needs a linear equations solver!!! Other 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).

Lee Leavitt

Please Fix number format, the best feature was displaying the digits in precision of 3, but the app only does minimum precision of 6. For example, i want .002 to be displayed as 2E-3, and .00002 to be displayed as 20E-6. It helps alot in the science field as i alway think in mM/e-3, uM/e-6 and nM/e-9. Best app out there!

Robert Summers

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!

Kasper Tulstrup

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!

User reviews

Christopher Wood August 31, 2016

Jay Wright June 4, 2016

Tor Saxberg September 25, 2016

Lee Leavitt July 11, 2016

Robert Summers May 29, 2016

Kasper Tulstrup July 28, 2016

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

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

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!

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 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!

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

Antonio De Bonis May 26, 2016

Astonishing math computer! But...no instructions Very efficient programmable calculator: original, ingenious interface, especially innovative sweeping keys. But PLEASE help us with an user instructions manual, or send us a link to Help Web page! Instructions, please.

Sergey Solovyev April 25, 2016

Hi Antonio, Currently there is no manual available for Calculator++. If you have a specific question you can ask it via email: se.solovyev@gmail.com.

Ruben Kan August 19, 2016

One of my go-to calculator apps I like the configurable options and layouts. I wish there was a RPN mode. Graphing is a plus. I use the floating window extensively. Wish it had option for % transparency. Please let us swap the equals button with the history log button as that switch would be awesome and make perfect sense for me. Why doesn't memory clear after entering expression? Even after pressing EQUALS, pressing a number appends it to the last expression. Forced to C to clear

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

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 ?

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!

Nikunj Goyal May 29, 2016

Please help! Why the wizard starts every time I open my calculator++ app?I am sick of setting up my preferences again and again.

Nathaniel Cantwell September 9, 2016

Favorite calculator Does everything I need it to and more. Function plotting could be a bit more advanced (plotting implicit equations), but as it stands, I'm perfectly satisfied with all of the features this app has. The custom functions and variables are perfect, and the library of calculus functions makes life easier.

Joel Ericson July 10, 2016

A really nice calculator! I like the speedup of the 3d graph rendering, but I miss the option from previous versions where you could select to plot both the real and complex values of a function at once. Still, 3d graphs in my phone ftw!

faisal masalha July 11, 2016

Honestly best calculator app out there All the other calculators stuck compared to this one

August 15, 2016

До совершенства не хватает только более удобного перевода между счетными системами и конвертер. Only missing step to perfection is hex and bin conversion more usable (more like programmer style of win calc)

Yami August 12, 2016

Working OK When using 3d graph it breaks the rest of the calculator Please fix. On Samsung galaxy S4 mini. Edit now working 5*

Iancu Andrei June 24, 2016

Best calculator ever A very useful and very good done calculator. I use it every time I need some quick and hard calculations.

Marco Nikander May 28, 2016

Great calculator It's fast, sleek, and has plenty of features all readily accessible thanks to its clever press-and-drag interactions. All in all it's just a great app!

Tristan Collicott May 25, 2016

Best calculator app Thanks for fixing the engineering notation. This is definetly the best calculator app with every function easily available on one screen.

Sergey Solovyev May 25, 2016

Hi Tristan, Please check the number precision you use in the settings. If you get 9s then probably it't too high and should be lowered.

Matthew Dombroski September 28, 2016

Best calculator app on android By far the best calculator app I have used on android. One of the first things I install on a new phone.

Byt3me21 June 2, 2016

Powerful and easy to use This is a great graphing capable calculator. It has been updated several times recently. It's my favorite calculator.

Atreya Bain September 2, 2016

Beautifully designed Might feel confusing at first, but not problem, it will grow on you.

Barry Whiteside September 19, 2016

Amazing and so practical Have been looking for an app of this quality for a long time and I think it is simply brilliant. It is so intuitive and easy for me to use whilst in the lab.

anubhav sharma August 21, 2016

The best ever! no doubt that this is a powerful calculator but also nice looking and user friendly with also a 3-d graph plotter. Its just the must have app for android.

Robert Newhook September 22, 2016

Very very nice calculator It has most-all the scientific calculator functions you need, and it looks great! Also how the function keys work is both intuitive and quick :)

Wolter Hellmund August 25, 2016

Excellent calculator app! Quick, nice appearance, lots of easy accessible functions. The 5th star I will give when I can use a comma as decimal separator 😊

Imdad Ali June 13, 2016

Settings problem Whenever I touch settings button it crashes

Luis Baltier September 5, 2016

Possibly the best free calculator or there It has a nice and intuitive interface, and it's loaded with so many features, including conversion tools, algebraic formula, and the ability to graph.

Gokul Achin September 22, 2016

Good ui U can add some more features in the calculator like converting polar coordinates to rectangular coordinates and vice versa. Other than that everything is good