Free Spaced Repetition Scheduler

lastmod 2025-05-19created 2025-05-191 edits

Optimizes per-user card scheduling with machine learning-based prediction

About

• The Spaced Repetition System, a study technique that increases the review intervals for previously studied material, enables effective long-term memory formation even with a small time investment
• The FSRS (Free Spaced Repetition Scheduler) algorithm, which optimizes per-user card scheduling with machine learning-based prediction, greatly improves efficiency and user satisfaction over previous methods
• FSRS is the default scheduler in the latest versions of Anki, so most users are already using it
• Compared with services such as WaniKani and Bunpro, the combination of Anki and FSRS is superior in study efficiency and flexibility

See also

• Machine Learning

Favorite site

• Spaced repetition systems have gotten better with FSRS | GeekNews
  • [Original] Spaced Repetition Systems Have Gotten Way Better | Domenic Denicola