Retrieval practice · Spaced repetition · Honest measurement

Study what you’re about to forget.

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Extraction timing · your reading

Proved 51% twelve days ago 34 today

Weak · falling Review due

Fig. 1 — the ghost needle marks what you last proved

FSRS scheduling Bayesian knowledge tracing Your PDFs, slides & transcripts Built for exams

How it works

Upload your materialsPDFs, notes, YouTube lectures, URLs. We extract the knowledge.

Study what mattersAI generates quizzes targeting your weakest topics. No more grinding what you already know.

Get honest feedbackSee predicted retention, not just scores. Know what you'll remember on exam day.

Review at the right timeSpaced repetition schedules reviews right before you'd forget. Study less, remember more.

Works for any material you're studying

Professional certifications — Cicerone, CPA, PMP, AWS, CompTIA. Upload your study guides, get quizzes that adapt to what you actually know.

Graduate & professional school — Law review, med school boards, PhD coursework. Turn lecture PDFs and textbook chapters into targeted practice.

Undergraduate finals — Any subject with study material. Upload once, study smart until exam day.

Self-directed learning — YouTube lectures, web articles, personal notes. If you can paste it or upload it, StudyEngine can quiz you on it.

Built on learning science, not vibes

Retrieval practiceQuizzes beat re-reading.

Spaced repetitionReview right before you'd forget.

Desirable difficultyHarder practice, deeper learning.

Scaffolded feedbackGuided hints, never given answers.

Knowledge tracingThe system knows what you know.

Eight research domains, one study platform.

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