Spaced Repetition
Cards resurface at the scientifically optimal interval, weighted by your confidence ratings and live performance — the memory engine powering Learn mode.
The memory engine under everything
Spaced repetition is the platform's core scheduling algorithm — SM-2 and above — built into every review queue and powering Learn mode. Cards resurface at the scientifically optimal interval for long-term retention, but ours goes beyond a fixed schedule: it weights each card by the confidence you rate before flipping it and by your live performance in sessions like FastFire. The result is a queue that spends your time on what you're about to forget, not on what you already know cold.
Smarter than a fixed schedule
SM-2 and above
The proven spaced-repetition algorithm family, built natively into every review queue across the platform.
Confidence-weighted
Rate how sure you are before you flip — that signal feeds straight into how often the card comes back.
Performance-aware
Live results from study sessions re-weight intervals, so a card you just bombed resurfaces sooner.
Powers Learn mode
The same engine drives the adaptive Learn session, continuously reshuffling toward your weakest items.
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Master Spaced Repetition with AI Matrx
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