Spaced repetition: how it works and why it beats cramming

Ebbinghaus's forgetting curve shows we lose about 70% of new information within 24 hours — unless we review it at the right moment.

Spaced repetition (SRS) schedules reviews just before you would forget. Each successful review lengthens the interval: 1 day, 3 days, 7 days, 21 days...

Our flashcard apps implement SRS automatically: 500, 1000, 2000 and up to 4000 words with intervals optimized to your performance.

Study 15 minutes daily with audio and context examples. In three months, you'll have vocabulary that stays — not vocabulary that disappears after a week.