Quizlet is a study app built around digital flashcards. Andrew Sutherland created it in 2005 as a high school student to help him learn French vocabulary, and it went public in 2007. The company is based in San Francisco.
Students make their own flashcard sets or search millions of sets made by other users and teachers. Study modes turn a set into practice tests, matching games and Learn, which repeats cards a student gets wrong more often. Teachers can create classes and run Quizlet Live, a team game played in the classroom. Textbook solutions give step by step answers for many common textbooks.
Quizlet has a free version with ads and limits on some study modes. Quizlet Plus is a paid subscription that removes ads and unlocks unlimited use of Learn, practice tests and expert solutions. Teachers have their own paid plan. The app runs on the web, iOS and Android. It is widely used by high school and university students in the US, the UK and Canada to prepare for exams and learn languages.