Calculator++ is an advanced, modern and easy to use scientific calculator.




Qalculate! is described as 'Multi-purpose cross-platform desktop calculator. It is simple to use but provides power and versatility normally reserved for complicated math packages, as well as useful tools for everyday needs (such as currency conversion and percent calculation)' and is a very popular Calculator in the education & reference category. There are more than 100 alternatives to Qalculate! for a variety of platforms, including Android, Windows, Mac, Web-based and Linux apps. The best Qalculate! alternative is SpeedCrunch, which is both free and Open Source. Other great apps like Qalculate! are OpenCalc, fxSolver, Soulver and Numbat.
Calculator++ is an advanced, modern and easy to use scientific calculator.




Calculator provides simple and advanced mathematical functions in a beautifully designed app.






OpalCalc is a brand new type of calculator for the PC. As easy to use as Notepad or a word processor, OpalCalc allows natural language in the sum and multi-line support so you can go back and adjust your previous calculations on the fly.




A simple yet powerful calculator that includes standard, scientific, and programmer modes, as well as a unit converter. It's the perfect tool to add up a bill, convert measurements in a recipe or other project, or complete complex math, algebra, or geometry problems.

It's like comparing one of the dollar store calculators to a TI-89


NumWorks designed an intuitive and evolutive graphing calculator to make learning maths easier.




Next generation notepad-based calculator, built with extendibility and privacy in mind. Works on Windows, macOS and Linux.




RealCalc Scientific Calculator Android's #1 Scientific Calculator. A fully featured scientific calculator which looks and operates like the real thing. Looking for fractions? Degrees/minutes/seconds? Landscape mode? You need RealCalc Plus. See elsewhere on this page for the l.


Calculator is an application that solves mathematical equations and is suitable as a default application in a GNOME Desktop environment.




Giac/Xcas is a free computer algebra system for Windows, Mac OS X and Linux/Unix (license GPL3, for commercial dual-license contact us).

The breadth of available constants and units along with a robust command line syntax.


Scalar is a powerful math engine and scripting language, that combines the simplicity of standard tools with the flexibility of scripting. It is much more than a calculator. Thanks to Scalar, defining arguments and functions has never been easier.




Its an app where you do maths like a normal person. It lets you type whatever you want and smartly figures out what is math and spits out an answer on the right pane. Then you can plug those answers in to future equations and if that answer changes, so does the equations its...



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.



Google’s calculator is a joke. Especially since Andoid 12 is has become a toy for children, that is almost useless and featureless, and has fewer functions than a $1 throwaway calculator in the 90. (I checked!) To compare it to Qalculate, is, frankly, insulting.