You purchase a Teacher subscription if you want to use card2brain as a teacher at a public school or university. The Teacher subscription is made for teachers who use card2brain with their students in their own classes. If you want to create flashcards for other teachers and their classes, you purchase an Educational subscription. The Teacher subscription is not made for institutional use in companies, administrations or privately run educational institutions. For the use of card2brain for the purpose of knowledge retention, training, teaching, education or further training in these areas, you license all end users with an Enterprise subscription.