Zorbi - Spaced-Repetition Flashcards - Other tools are built by boomers, Zorbi is built by students.
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.
Mochi - Write notes and flashcards with Markdown and study them with spaced repetition.
Memrise - Learn a new language with games, humorous chatbots and over 30,000 native speaker videos.
SmartCards+ - Spaced Repetition Software for iOS. Modern, powerful and easy to use.
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 .