Cramd
Cramd's spaced-repetition engine and knowledge-gap tracking put it a step past a plain flashcard generator, and the public deck library plus Quizlet import make it easy to start without building everything from scratch. Pricing is not published anywhere on the site, which makes it hard to judge value against competitors before signing up.
Pros
- Generates flashcards and quizzes directly from PDFs, notes, and photos
- Spaced repetition prioritizes cards you actually get wrong
- Public deck library and Quizlet import mean you don't start from zero
- Public API available for developers
Cons
- No pricing information published on the site
- No dedicated mobile app, only a responsive web layout