
Description: Clozemaster is a language learning tool focused on building vocabulary through an adaptive spaced repetition system. Users practice filling in the blanks in sentences in their target language.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Babbel is an online language learning platform that offers lessons in 14 different languages. Its courses emphasize practical conversation and vocabulary through interactive lessons that adapt to each user's strengths and weaknesses.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API