Duolingo provides a language learning platform that engages users through gamified, bite-sized lessons. The app caters to a wide range of learners, from those studying for personal interest to professionals and students. Users can access the core features for free, while premium subscriptions offer an ad-free experience and additional functionalities. Duolingo stands out from its competitors by being the most downloaded education app ever and the top-grossing education app in 2019. The company's goal is to make high-quality education accessible to everyone, and it has been recognized for its positive workplace culture.