Everything you need to master more
It starts with flashcards — auto-generated from your own material — and grows into a complete study system that makes them stick. Explore each feature in depth below.
Flashcard generator
Smart flashcards from anything you upload
This is the heart of ClassFactor. Drop in a lecture, PDF, slide deck, video, or your own notes and it writes a clean, high-quality flashcard deck in seconds — each card grounded in your material and ready to review.
- Auto-generated fronts and backs, grounded in your source
- Term–definition, Q&A, and cloze-deletion cards
- Edit any card, or thumbs-down to instantly regenerate it
- Every deck is scheduled with FSRS spaced repetition from day one
More question types
Beyond flashcards: MCQ, written & case questions
Flashcards are just the start. From the same material, ClassFactor also writes multiple-choice, true/false, free-response, and clinical-case questions — each grounded in your source with a citation back to the exact page or timestamp.
- Plausible distractors that test real understanding
- A judge model filters weak, duplicate, or trivial items
- Every question cites its source
- Thumbs-down anything to remove and improve it
Spaced repetition
Review at the perfect moment, every time
ClassFactor schedules each card with FSRS — the modern successor to SM-2 — predicting your personal forgetting curve so reviews land right before you'd forget. Maximum retention, minimum time.
- FSRS-6 scheduling out of the box
- A daily queue that adapts to your time
- Prioritizes your weakest recall first
- No manual intervals, ever
AI tutor
An explanation for everything you miss
Get instant, source-grounded explanations on any card — or open a chat to dig deeper. On Pro and Medical, study hands-free with the voice tutor and talk through answers grounded in your own notes.
- Explanations generated on demand, grounded in your source
- Per-question chat you can keep asking
- Hands-free voice study in your browser (Pro & Medical)
- Always available while you review
Image occlusion
Mask-and-reveal for anatomy & diagrams
Upload a labeled diagram and ClassFactor creates occlusion cards that hide each label for you to recall — the fastest way to learn anatomy, pathways, and any visual you need cold.
- Automatic label detection on diagrams
- One card per masked region
- Perfect for anatomy, biochem, and pathways
- Scheduled with FSRS like every other card
Mastery analytics
Always know exactly where you stand
A mastery score for every topic and a clear view of your consistency — so you can see what's strong, what's slipping, and precisely what to review next.
- Per-topic mastery tracking
- Weakest topics surfaced first
- Streaks, study time, and progress over time
- A daily queue that tells you what to do next
Exams & templates
Sit a real, AI-composed exam
On Pro and Medical, compose a timed exam across your decks and classes, then sit it in one section-by-section sitting with automatic grading. Board templates — USMLE, MCAT, and NCLEX — shape questions into true clinical vignettes.
- AI-composed, timed, auto-graded exams
- USMLE, MCAT & NCLEX board templates
- Clinical vignettes with 5-option stems
- Set an exam date to drive your review schedule
And more
Quizzes, 35+ languages, source citations & more
Every feature works together in one place — on web, iOS, and Android — so you're not juggling five different study apps.
Start today. Multiply tomorrow.
Turn your notes into lasting mastery — one correct recall at a time. Free to start.