Quizlet's flashcards, tests, and study games make learning fun and engaging. Sign up in seconds! Add flashcards, borrow from other teachers, and create classes - all for FREE. Students can study on their phones and tablets with Quizlet's mobile apps for iPhone, iPad and Android devices. Quizlet classes are a great way to get your study sets organized for your students. With a free Quizlet account you can create up to 8 classes, and with a Quizlet Teacher account you can create unlimited classes.