


Chalk is described as 'Calculator that tries to do right what others do wrong. It wants to prove that a "basic" software calculator can be as handy as a real desktop calculator' and is an app. There are more than 25 alternatives to Chalk for a variety of platforms, including Windows, Linux, Mac, Android and iPhone apps. The best Chalk alternative is SpeedCrunch, which is both free and Open Source. Other great apps like Chalk are Numi, GeoGebra Scientific Calculator, Windows Calculator and GNOME Calculator.



Multi Share Calculator is a portable tool that allows anything to be shared proportionally!

Multi Share Calculator is the most popular commercial alternative to Chalk.
EBTCalc is a Reverse Polish Notation (RPN) calculator that can have custom buttons. Custom buttons are programmed in Javascript with a convenient editor. EBTCalc runs on Windows 10, OSX, and Linux as well as Android. EBTCalc is open source.


Liri Calculator is a cross-platform, Material Design calculator, currently in alpha stage.















Ad-free calculator offering basic and scientific computations, including exponents, roots, fractions, and more, with intuitive single-line input, up to 10 decimal precision, viewable and editable calculation history, customizable color themes, and no paid features.



FP Calculator is a calculator app for iPad&iPhone, which includes basic calculations, scientific calculations, and currency conversion functions.


