
Description: Calculator++ is a free, open-source calculator application for Windows. It provides standard calculator functions as well as scientific, programmer, date calculation, and converter tools. Key features include customizable skins, history, memory functions, special constants, and the ability to create user-defined functions.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: GeoGebra is free and multi-platform dynamic mathematics software for all levels of education that joins geometry, algebra, spreadsheets, graphing, statistics and calculus in one easy-to-use package. It can be used for interactive learning and teaching mathematics.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API