Whether you are learning a new language, studying for a standardized test (such as the GRE or the MCAT), or just looking to brush up on your knowledge base, Brainscape may be for you. This interactive flashcard program is offered both as a web browser and as an iOS or Android application. By creating a free account, Brainscape users can access a number of existing flashcard sets or create their own. As users go through each set, they rate their overall knowledge in confidence about each card. Brainscape then takes these self-ratings to engage users more frequently with the cards reported as challenging. Users can create a basic account for free; to access all available flashcards, users must purchase a subscription. There is also a version for Educators.