Cognito is an online learning and revision platform for students studying KS3, GCSE, A-level, International Baccalaureate and Advanced Placement courses. Used by students in more than 100 countries, it brings study materials and practice tools together in one place, with many resources available for free. The platform covers more than 300 courses and 15 subjects, including biology, chemistry, physics, mathematics, English, history, geography and languages, across UK and international exam boards.

Students can learn through concise video lessons and topic-based revision notes, then check their understanding with quizzes and a large question bank. Cognito also offers digital flashcards for memorising key concepts, exam-style questions and past papers to build exam confidence, and AI marking and feedback to support practice. Students can create their own quizzes and flashcard decks and track their progress. Cognito says its users improve their grades on average, and highlights resources designed to make complex topics clearer and revision easier to fit into busy schedules.