Practice that remembers what you missed.
QuizSprint uses spaced repetition and mistake-first ordering — two of the most-studied learning techniques in cognitive science.
Start practising →One question, one week.
Here's the same question across one student's week of practice.
Day 1 — Monday morning
WrongYou answer Q14 in Quadratic Equations. Wrong.
Day 1 — evening
CooldownQ14 is in a 12-hour cooldown. You won't see it again tonight.
Day 2 — Tuesday
PriorityQ14 reappears at the top of your practice queue.
Day 2 — later
Correct → cool-offYou get it right this time. Q14 enters a 7-day cool-off.
Day 9 — next week
Re-testQ14 comes back for a re-test. Still right? It cools off again.
Why this works.
The forgetting curve
Ebbinghaus, 1885
Hermann Ebbinghaus showed that without review, we forget about 50% of new material within an hour. Spaced repetition flattens that curve by triggering the review at the moment you'd otherwise forget.
The testing effect
Roediger & Karpicke, 2006
Retrieving information from memory strengthens it more than re-reading. Every QuizSprint question is a retrieval, not a re-read.
What actually works
Dunlosky et al., 2013
A meta-analysis of 700+ studies ranked practice testing and distributed practice as the two most-effective study techniques. Both are what QuizSprint does.
Used by learning systems worldwide.
Pimsleur · USA
Language since the 1960s
Language courses built entirely around spaced retrieval — the model US government language schools have used for decades.
SuperMemo · Poland
The spaced-repetition pioneer
Software pioneer of computational spaced-repetition algorithms — the predecessor of every modern flashcard tool from Anki to Duolingo.
Singapore primary maths
Mastery-based progression
Don't move on until the basic is solid. Same principle as our cooldown system — solid recall before retiring a question.
Built into every chapter on QuizSprint.
No setting to flip on. No premium tier. Adaptive practice is just how the runner works.
Pick a chapter →