Gizmo vs StackRef

SpecialistShare and access study materials worldwide — with AI study tools built in

Offers robust flashcard creation and practice tests, but with a stronger focus on free study tools.

Provides comprehensive AI tutoring and course material conversion, but features a more structured video-explainer interface.

Converts course materials into flashcards and mind maps, though its interface emphasizes visual conceptual learning over gamification.

SpecialistTurn any material into visual study sets, flashcards and quizzes

Free / Open-sourceGoogle's batteries-included framework for scalable web apps

Excels at summarizing extensive lecture notes and videos into study guides, though its flashcard gamification is simpler.

Transforms various notes and videos into structured summaries and quizzes, offering a clean, straightforward study experience.

Specializes in converting study files directly into Anki-compatible decks, ideal for dedicated spaced-repetition users.

Free AI study partner that turns your course material into practice questions, guides and flashcards

Great for generating diverse quiz formats and flashcards from documents, but lacks Gizmo's gamified study sessions.

Quickly turns lecture notes and PDFs into quizzes and flashcards, but has fewer advanced podcast generation features.