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.
Xmind - Xmind is a brainstorming and mind mapping application.
Memrise - Learn a new language with games, humorous chatbots and over 30,000 native speaker videos.
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
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 .
Coggle - Coggle is a simple, beautiful, powerful way of structuring information.