Register as a user to create cards for studying. You can make decks of cards and share them, or join a group that already has decks.
Create a group which other users can join. Share your decks with them and see their progress.
Create your own decks and share them with your groups, or just run the decks for your own study.
Analyse how you are doing in comparison with the rest of your group, or see how your students are progressing.