Looking for an online service to help students study? ExamTime is one such service that can create flashcards, mind maps, and practice quizzes. And it's free to sign up.
ExamTime recently added some new features, too; the most significant of which is the new performance tracking option that lets students track their scores on quizzes and which flashcards and nodes they need to spend more time working on. "Pinning" has become an option now, too, as the study material can be shared publicly so there is already a wealth of material to access.
Want to know more about it? Visit https://www.examtime.com/