Source-cited answers
Every AI explanation links back to the exact paragraph or timestamp it came from, so you can verify instead of trusting blindly.
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Import a PDF, EPUB, web page, YouTube video, or audio file. LearnBook compiles it into a structured book you can read, question, and study — with every AI answer grounded in the original source.
Upload PDFs, EPUBs, PPTX, images (OCR), audio (transcription), or paste a web page or YouTube link. The compiler extracts clean text and structure.
An outline is built chapter by chapter with summaries, key concepts, and per-chapter flashcards and quizzes generated automatically.
Ask about any passage and get an answer grounded in your material, with citations that jump back to the exact source paragraph.
Every AI explanation links back to the exact paragraph or timestamp it came from, so you can verify instead of trusting blindly.
The tutor can flip the table and quiz you with guiding questions, checking real understanding rather than spoon-feeding summaries.
PDF, EPUB, PPTX, web pages, images with OCR, audio with transcription, and YouTube captions all compile into the same book format.
Highlights, notes, concepts, flashcards, and quizzes are generated per chapter and stay linked to the source material.
Compile textbooks and lecture slides into chaptered books, then question the hard parts until they make sense.
Load papers and ask precise questions with citations you can trace back to the exact passage before quoting.
Turn a watch-later playlist or a folder of unread PDFs into a shelf of books you actually finish.
PDF, EPUB, PPTX, plain text, images (via OCR), audio (via transcription), web page URLs, and YouTube links with captions. Everything compiles into the same interactive book format.
Answers are generated with retrieval over your own material, and each claim carries a citation that jumps to the source paragraph or timestamp. If the material doesn't support an answer, the reader says so instead of guessing.
The free plan includes importing materials and a monthly allowance of AI questions and generations. Pro raises the limits and unlocks heavier imports like long videos and audio.