
Description: Listudy is a free and open-source spaced repetition flashcard app for learning languages. It supports creating decks, adding flashcards with rich formatting, scheduling reviews with spaced repetition, tracking progress, and exporting/importing data.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

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: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API