RedCrab Calculator


RedCrab Calculator

RedCrab is a mathematics software with fullscreen editor for technical, scientific and financial calculations.

The handling of the basic functions is just like a conventional calculator. There is no training required. The editor allows the free placement of algebraic formulas on the worksheet in mathematical notation.

Results can be displayed in different numeric formats or in diagrams. Images and text can be inserted to describe complex calculations.

The worksheets are also suitable for presentations as well.

RedCrab is shareware, also with limited functionalities can be used as freeware.

RedCrab, Download at heise



System requirement RedCrab Calculator VI
Microsoft *Windows XP, Vista, W7, W8.x, W10
Framework 4.0 or higher

Older versions:

RedCrab Version V4.13 runs with operating system Linux with Wine runtime system.
download V 4.13

RedCrab is portable

RedCrab is portable. No installation is required. You can move the RedCrab directory on the PC or to external drives.

RedCrab starts from external disk, e.g. USB flash drive or CD / DVD.

Program settings are stored in a file on the user directory. No entries in the Windows registry.


*Windows is a registered trademark of Microsoft Corporation.