The iPad lacks a built-in calculator but there’s no shortage of 3rd party ones in the App Store. I’ve already reviewed Calcbot for iPhone and iPad and I’m loving it, but this one’s good, too. Digits ...

Google has rebuilt Chrome OS’s built-in Calculator app, making it available for all devices, not just Chromebooks. For years now, Chromebook owners have been able to use Google’s free calculator app.

Microsoft has open sourced the code for its Windows Calculator app, inviting developers to help improve the tool's user experience while at the same time learning about and possibly adopting its ...