A spaced repetition app that schedules your reviews at the perfect moment — so you spend less time studying and remember more.
The SM-2 algorithm adjusts intervals based on how well you know each card. Hard cards come back sooner, easy ones later.
Works on any device with a browser. Install as a PWA for an app-like experience — no app store needed.
Bring your existing cards via CSV or JSON, or export your decks to back them up or share with others.
Push notifications remind you when cards are due so you never miss a review session.
Organize your cards into decks by topic — languages, science, anything you want to remember.
Review cards as they come due. Rate how well you remembered, and the algorithm does the rest.
See your streaks, review counts, and card maturity grow over time with built-in stats.
Spaced repetition is one of the most effective learning techniques backed by cognitive science. By reviewing information at increasing intervals, you strengthen long-term memory while minimizing study time.
Free to use. No ads. No tracking.
Create your first deck and see the difference spaced repetition makes.
Start learning