What's new

Summa is in early access. It changes most weeks, based on what students tell us. If something's confusing, broken or missing, tell us.

October 8, 2026

Chemical formulas, ions and equations show properly in quizzes: H₂O, SO₄²⁻, Fe³⁺ and → instead of H2O, SO42- and ->.
Your results show your personal best in each room, by accuracy, so short and long rounds compare fairly.
After a round, one thing worth remembering: the explanation for the first question you missed.
The review after a round opens the questions you missed; the ones you got right fold away.
Try a sample question on the home page before signing in.
New Community Guidelines, Copyright Policy and Accessibility pages, and a clearer Privacy Policy.

A private study room for every course: questions and answers, shared notes, clout and quizzes from the class notes.
Sign in by typing the code from your email, if the link doesn't work on your phone.
Room links shared in chats show only the course code.

Play a room's latest class round before signing in, from its link.
Challenge a classmate to beat your score on the same questions.
Day streaks, and notifications you can turn on for answers, challenges and new rounds.
Open to students at Johns Hopkins and UIUC.