
Description: Oppia is an open-source learning platform that allows users to create interactive online lessons called 'explorations'. It features a visual editor for building engaging content like quizzes, simulations, and feedback.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Alchetron is an open source knowledge base and content hosting platform. It allows users to create and edit content in a wiki style format through a user friendly browser interface.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API