Master any subject. One question at a time.
Answer each question correctly three times and it retires from your pool. No bloated decks, no wasted reviews — just the questions you still need to learn.
Spaced Repetition
Questions reappear until you answer correctly three times, then they retire. Focus on what you haven't mastered yet.
Community Content
Browse question pools created by other students and educators, or build your own and share it with the world.
Pay Once, Not Forever
No subscriptions. Buy a question pool once and it's yours to study whenever you want, at your own pace.
Built for students who study at night.