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.
Drops - Visual language learning.
Clozemaster - Learn a language through mass exposure to useful vocabulary in context.
Multilingual - A command-line application that automatically translates the input sentence to multiple languages adds the translations to respective translation JSON files
Bialect - Learn languages faster with stories.
Learn 50 Languages - Learn more than 50 languages for free using your native language.