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.
Pitch Cards - I've 99 problems and I'm ready to pitch one!
Mondly - Learn 33 languages in 500 bite-size lessons and 14 conversational modules.
PitchEasy - The card game that lets you pitch over 80 million Ideas
Lingvo TV - Learn languages while watching movies on Netflix.
Web Trumps - A nerdy card game all about startups