
Description: English Attack! is a free, cross-platform English learning software. It uses interactive games, quizzes, and audio lessons to help students learn vocabulary, grammar, reading, writing, listening, and conversation skills. Ideal for self-study or classroom use.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Duolingo is a free language-learning platform that offers over 100 total courses across more than 30 languages. The bite-sized lessons make it easy to learn a new language through fun, quick activities on your phone, tablet, or computer.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API