
Description: Lucas Chess is a free and open source chess application for Windows. It features chess analysis, training tools, online play, and databases of players and openings. It is good for beginners and advanced players looking to study and improve.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: OpeningTree is open-source mind mapping and brainstorming software. It allows users to visually organize ideas, tasks, and projects into interactive maps. Key features include real-time collaboration, markdown support, and easy sharing and exporting.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API