
Description: UltimaCalc is a spreadsheet software designed to be a free, open-source alternative to Microsoft Excel. It offers many similar features to Excel including calculations, graphing tools, pivot tables, and support for various file formats.
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