Ratings and reviews

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0 stars out of 5
5,143 ratings

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3 stars out of 5
· 12/14/2015
Not optimal layout in Programmer mode

The numeric keys are laid out in a very awkward format in Decimal mode when using the "Programmer Calculator". The layout should be the same as in the "Basic" mode. This makes the app very awkward to use for programmers. Keyboard layouts for the decimal keys should be consistent in all screens.

5 stars out of 5
· 12/2/2015
Broken on Lumia 950

I loved the app on my WP8.1. It had all the functionality I needed all while looking clean and organized. I installed it on my new Lumia 950 with W10M and had some issues with it. However Richard Walters, the author, did a timely job of addressing them and it is working quite well.

5 stars out of 5
· 11/17/2015
Best Calculator on Computer & Phone!

I have this app on my phone, tablet, and computer. It is the same in all three places. Love It. I am an engineer, and I use this app every day. It does everything I ever need. I e-mailed the author about a suggestion, and he responded. He said it was a good idea, and it will be in his next update. The program is easy to use, powerful, fast, and cross-platform consistent. I highly recommend it.

5 stars out of 5
· 11/9/2015

Best calculator app in the windows store. Loved the design which is intuitive, elegant yet simple. Loved the colors as well. Developers have put a lot of thought behind this it seems. Thanks a ton for the app.

5 stars out of 5
· 12/27/2015

Extremely useful app. Works very well. Luv it.

4 stars out of 5
· 12/24/2015
Good One

Its a good calculator and works perfectly.

4 stars out of 5
· 10/28/2015
I know what an oz-in is, but what's a scruple?

Awesome app! I have yet to find anything better. But what good is a scruple and foot-poundal? Can we get a few more torque conversions like ounce-inches and newton-centimeter, etc. Also, how about the option to hide units that are less relevant?

5 stars out of 5
· 12/1/2015
Good app and responsive support.

Good app, though more importantly great support. Very responsive developer.

4 stars out of 5
· 11/3/2015

Good one,easy to use.

5 stars out of 5
· 10/24/2015
Great app!

Works great on phone and tablet! Clean UI and very functional for hex conversions

stars out of 5


  • Scientific Calculator
  • Financial Calculator
  • Programmer Calculator
  • Basic Calculator
  • Currency Converter
  • Unit Converter
  • Keyboard support
  • Live tiles
  • Calculation history

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App details

Version notes

Windows 10 Version 5.5 • Added information about the Android app on Google Play. Version 5.4 • No longer hiding the software navigation bar on mobile. • Various UI enhancements. Version 5.3 • Improved handling of the in-app purchase: the app remembers the status of the purchase even when the device has been offline for a few days. This also solves intermittent issues with the in-app purchase API telling the app that the purchase hasn't been made when the opposite is true. • Fixed negative numbers raised to the power zero returning –1 instead of 1. • Improved Simplified Chinese translations. Version 5.2 • Added new units to the Unit Converter: Rankine, Poise, Centipoise, Stokes, Centistokes. • Performance improvements. Version 5.1 • Improved layout for medium to large window sizes. • Stability improvements. Version 5.0 • Upgrades the app to native Windows 10 UWP. • Allows the app to be run in a window on the desktop. Windows Phone Version 4.5 • Improves scaling for high dpi devices to allow more buttons in the main view.

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