Option A: Gemini Notebook: generates cards from your notes
Best when: You want cards generated straight from cited notes
What it does: AI drafts targets and cards; you reject, edit and test
Strong at: Feature generates a deck and a CSV download
Limit: Cards may drop references and cues; you rebuild them
Free plan: Yes, limited (notebook and source caps)
Option B: Knowt: generates the deck, you test and repair it
Best when: You want a quick deck and study modes in one app
What it does: Knowt generates the deck; you test and repair it
Strong at: Learn, Practice Test, Spaced Repetition and Match modes free on own sets
Limit: Flashcard generation may count against the monthly cap; check current terms
Free plan: Yes; unlimited sets, notes, study modes confirmed; one AI summary per month
Option C: Claude: drafts the card-source table, then the cards
Best when: Traceability matters more than generation convenience
What it does: Claude drafts table and cards; you check each stage
Strong at: Every card sits on a row with page and exception
Limit: You do the formatting yourself
Free plan: Yes, limited (5-hour and weekly usage caps)