Review
Each card is a skill, not a question — so a review pulls a fresh question on that skill rather than the one you memorised. Ordered by how overdue it is relative to its own interval, because a card two weeks late on a three-day interval is in far more trouble than one a day late on a year.
Due now
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Cards total
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One per skill you have practised
Next 14 days
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No review cards yet — they appear as soon as you answer something.
Pick a subject.
Intervals follow SM-2 with two deliberate changes: a lapse drops the interval to 40% of what it was rather than resetting to one day (you have not forgotten everything), and intervals of four days or more get ±5% of seeded jitter so a big study day does not turn into a permanently lumpy schedule.