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


SpeedCrunch is described as 'Free, fast, high precision open source algebraic calculator with an intuitive interface and many features, such as variables, syntax highlighting, functions, persistent input history & more' and is a very popular Calculator in the education & reference category. There are more than 100 alternatives to SpeedCrunch for a variety of platforms, including Windows, Android, Web-based, Mac and iPhone apps. The best SpeedCrunch alternative is Qalculate!, which is both free and Open Source. Other great apps like SpeedCrunch are OpenCalc, fxSolver, Numbat and GeoGebra Scientific Calculator.
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.






Supercalc is an expression calculator for Windows. An expression calculator gives the user the ability to type an equation exactly as it is to be evaluated. This allows for much more intuitive use of the calculator.

A graphical scientific calculator that is easy to use and has some advanced functionality such as vector arithmetic and variable solving.




Power calculator for Android. Has Calculus, Algebra, 2D/3D Graphing and other features.



GlassCalc is a free, Windows calculator designed for quick input via keyboard. It forgoes the usual array of buttons for a single textbox where you can type an equation or mathematical expression, hit Enter, and get a result.




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



Calcul.io offers realtime calculator with notepad like interface and advanced features like unit conversions, currency rates or date time math.





With MyScript Calculator, perform mathematical operations naturally using your handwriting.







