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.
Mondly - Learn 33 languages in 500 bite-size lessons and 14 conversational modules.
4Cards - A beautiful app to learn four great English words every day
MondlyAR - Learn languages in augmented reality
LingQ - Learn languages by immersing yourself in a world of interesting, authentic content!
Lingvist - Lingvist helps you take your foreign language skills to the next level with a broad selection of exercises and lessons.