Duolingo - Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.

NWEA Assessments - NWEA Assessments creates a personalized assessment experience by adapting to each student's learning level.

Mondly - Learn 33 languages in 500 bite-size lessons and 14 conversational modules.

ALEKS - ALEKS is a web-based artificially intelligent assessment and learning system that uses adaptive questioning to accurately determine exactly student knows.

Lingvist - Lingvist helps you take your foreign language skills to the next level with a broad selection of exercises and lessons.

iSpring QuizMaker - iSpring Quiz Maker is easy-to-use quiz software. Create interactive quizzes and surveys in HTML5 & Flash and embed them in a website or publish for any LMS!