Learnivore

Learnivore builds study decks from the material you already have. You drop in a PDF, Word document or plain text file, such as lesson notes, worksheets, a syllabus, past papers or a textbook chapter, and it generates a deck based on exactly what you uploaded, with four different question types meant to match how exams test. The vendor says a deck is ready in under 60 seconds and positions it against the hours students spend making cards by hand.

A spaced repetition system tracks which cards you find hard or easy and schedules each one for review just before you would forget it, with ratings of again, hard, good and easy. It is aimed at high school and university students, and an app is also available on the App Store.

Learnivore is a hosted service with a 7-day free trial that requires a credit card and can be cancelled anytime. During the trial you can generate up to 3 AI study decks. Pro costs $10 per month or $90 per year and includes unlimited AI study decks, all four question types and priority AI processing.