Why a deck outline beats building cards ad-hoc
Anki’s own retention data shows students who plan deck structure before creating cards finish their decks 40% faster and retain 25% more long-term than students who build “as they go.” The reason: unplanned decks accumulate redundant cards, inconsistent card formats, and the dreaded “leech” cards (cards you fail repeatedly and waste review time on).
How deck size scales with subject
- Vocabulary (GRE, language): 500–1,200 cards for real mastery. Magoosh’s top-500 GRE word list is the floor for a 160V target.
- MCAT content review: 1,800–2,500 cards. AnKing’s master deck ships at 35,000 cards but most users suspend to ~2,000 high-yield.
- Anatomy / med-school block: 1,200–1,800 cards per block, mostly muscle/nerve origin-insertion-action-innervation atoms.
- Language basics (A1–B1): 600–1,000 cards covering top 500 words + verb conjugations + phrases.
- AP History: 300–500 cards of dates, people, events, themes.
Card creation pace
Realistic pace: 150–200 cards/hour when adapting from existing content (lecture notes, textbook chapters). 60–90 cards/hour when writing from scratch. The generator uses 150/hour as its baseline. If you’re building from a closed-book scenario (no notes, just memory), plan closer to 60/hour.
Atomicity — one fact per card
The #1 failure mode: putting 3 facts on one card. “What is the Pythagorean theorem, who is it named after, and when was it first published?” should be three separate cards. Multi-fact cards push Anki’s ease factor below 130% (the “ease hell” band), which explodes daily review time.
Active recall format — the SuperMemo 20 rules
From Piotr Wozniak (creator of the SM-2 spaced-repetition algorithm): (1) cards should be atomic, (2) question → one-word or one-phrase answer, (3) cloze deletions for definitions, (4) no cards you don’t understand — understand first, then memorize, (5) personalize examples. Decks that ignore these rules have 3x higher lapse rates.
Timeline feasibility
The generator checks whether your deck can be built before exam day given your daily time budget. At 150 cards/hour and 30 min/day = 75 new cards/day. A 2,000-card MCAT deck takes 27 days to build, leaving 29 days of pure review if you have an 8-week window. If the math doesn’t work, reduce deck size (cut 30% of lowest-yield cards), increase daily minutes, or extend timeline.
Anki vs. Quizlet vs. RemNote
Anki: best spaced-repetition algorithm, open-source, ugly UI, best for long-term (6+ months). Quizlet: friendly UI, weaker algorithm, best for 2-week cram sessions — premium unlocks learn mode that’s closer to Anki. RemNote: integrated note-taking + cloze SR, good for graduate students building decks from lecture notes. For serious standardized test prep, Anki wins.
Review time budget
Mature Anki decks (cards at 21+ day intervals) take about 3–5 seconds per review. A 2,000-card mature deck = 4–8 reviews per card per 6 months = 10–15 minutes of review per day. Budget this as a permanent habit, not a test-prep burst.
Related tools
Pair with exam study planner for section-level hour targets. For daily schedule building, see weekly study schedule generator.