LinguaLeo is an English language learning platform for Russian, Turkish, and Brazilian Portuguese speakers.

[7][8] The app library includes over 200,000 real-world materials to study: media articles, news, TED Talks,[9] songs, videos, stories, and jokes.

[7][10] To motivate the users, LinguaLeo adds gamification mechanics through interaction with the app's mascot Leo the Lion.

[11] A paid subscription provides access to extra courses, tutorials, and interactive training and allows one to add an unlimited number of words to the personal dictionary.

[11] LinguaLeo was launched as a web application in March 2010 by Russian entrepreneur Aynur Abdulnasurov and his four-person development team.