
Description: WolfCalc is a free, open-source spreadsheet program similar to Microsoft Excel or Google Sheets. It offers many of the core spreadsheet features like formulas, charts, formatting tools, and data analysis functions.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Freemat is a free, open-source alternative to MATLAB. It provides a wide range of mathematical functions and supports numerical computation, engineering and scientific visualization.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API