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.
Anima App - Design, get feedback, convert to code, publish, iterate.
Memrise - Learn a new language with games, humorous chatbots and over 30,000 native speaker videos.
Toucan - Learn a new language without even trying
Busuu - Join the global language learning community, take language courses to practice reading, writing, listening and speaking and learn a new language. Learn English with busuu's .
git18n - Minimalist translation management without the bloat! #JS #react