Duolingo is a gamified language-learning platform created by a company of the same name.
The application was first launched in beta as a website for a limited number of users on November 30, 2011 and was later fully launched on 19 June 2012 [1][2].
Learning process
The application is designed as a game and thus offers short lessons that must be unlocked as the learner proceeds. It also features written, dictation, and speaking exercises.
The learner progresses through a language tree learning new words by completing lessons and skills. As a reward and motivational feature skill points and lingots are awarded as learners or practice or complete lessons.