Active recall and spaced repetition, minus the manual card-making
Paste your notes or a lecture transcript and it generates flashcards and practice quizzes automatically - the free tier is genuinely usable, unlike some freemium study apps. Built by students, for students, after Quizlet got expensive.
The gold standard of spaced repetition - the algorithm schedules reviews at the exact moment you are about to forget. Ugly and old-school, but premeds and language learners swear by it for a reason.
The biggest library of user-made study sets on the internet - someone has probably already made cards for your exact textbook chapter. The free tier keeps shrinking though, which is exactly why Knowt exists.
Takes notes and turns them into spaced-repetition flashcards in the same app - the notes-to-cards pipeline is the smoothest anywhere. Learning curve is real, but for heavy notetakers it replaces two apps.