Memrise is a language learning platform that uses flashcards and video clips of native speakers to help users learn over 25 languages. It offers over 150 language courses ranging from 3 to 9 hours in length for languages like French, Arabic, Spanish, German, and more. While the basic account is free, a pro membership costs $9/month, $59/year, or $129 for a lifetime for additional features like offline access. The app aims to make language learning enjoyable and has over 20 million registered users.