Breef is a note-taking and study app. Write down what you learn, link ideas with [[double brackets]], and see everything you know as one map. Spaced reviews bring each note back before you forget it, and an exam date gets a whole course ready in time. Record a lecture and get a tidy study note with the transcript; drop in a PDF of slides and get linked notes; ask a question and get an answer from your own notes. Free forever for the core; Pro is €6 a month. In English, Italian, Spanish, French and German.