# LearnBook

> AI study platform for knowledge acquisition and mastery. LearnBook turns books, PDFs, web pages, videos, podcasts, and notes into an interactive learning system — contextual RAG reading, an AI tutor that cites sources, auto-generated flashcards and quizzes, FSRS spaced repetition, course generation, and social learning — so reading becomes verifiable learning.

LearnBook is not "another AI summarizer." It closes the full learning loop — **Understand → Remember → Practice → Output** — and turns every source into a long-term knowledge asset. Tagline: *Learn Anything to Book, by AI.*

Canonical site: https://learnbook.ai
Contact: support@learnbook.ai

## What LearnBook Does

- **AI Interactive Reader** — Chat with any book, PDF, paper, web page, or video transcript using full-context, source-cited RAG. Ask questions about a specific passage and get grounded, traceable answers.
- **Personal Knowledge OS** — Highlights, notes, concepts, flashcards, and learning events become an interconnected, semantically searchable knowledge graph with bidirectional links and auto-tagging.
- **AI Courseware Generator** — Turn a topic or imported material into chapters, summaries, quizzes, flashcards, and shareable courses.
- **Learning-Loop Engine** — FSRS spaced repetition, cross-book review, mastery tracking, a 21-study-day habit challenge, and weak-spot reinforcement verify what you retain and encourage consistent practice.
- **Social & Gamified Learning** — Automatic streaks and XP/levels driven by real study activity, team leaderboards, quiz challenges, and asynchronous friend PK duels.

## How It Works (the learning loop)

1. **Import** — PDF, web page, image (OCR), audio (ASR), YouTube captions, PPTX, EPUB, or plain text.
2. **Compile** — Text is extracted, an LLM builds an outline into chapters and summaries, then auto-generates flashcards and quizzes per chapter.
3. **Study** — Read with a RAG-grounded Socratic AI tutor; take per-chapter quizzes and flashcards.
4. **Review** — FSRS reschedules each card; cross-book review sessions target what's due; daily mastery snapshots build a trend.
5. **Retain & connect** — Streaks, XP, team leaderboards, quiz challenges, and friend PK keep momentum — all powered by real study activity, never a check-in button.

## Key Pages

- [Home](https://learnbook.ai/): What LearnBook is and the learning loop it powers
- [Tools](https://learnbook.ai/tools): Interactive reader, course builder, FSRS review, quiz challenge, friend PK, and study translator entry points
- [Features](https://learnbook.ai/features): Deep-dive pages for each learning tool — how it works, capabilities, use cases, and FAQ
- [Pricing](https://learnbook.ai/pricing): Free, Pro, Team, and Enterprise plans plus a learning-credit model
- [Blog](https://learnbook.ai/blog): Study methods, spaced repetition, active recall, and AI-learning guides
- [Comparisons](https://learnbook.ai/vs): Side-by-side comparisons with other AI study and knowledge tools
- [Alternatives](https://learnbook.ai/alternatives): Curated alternative lists ranked by learning fit
- [Help Center](https://learnbook.ai/help): Setup guides and product support
- [Getting Started](https://learnbook.ai/help/getting-started): Step-by-step onboarding for new learners
- [About](https://learnbook.ai/about): Mission, charter, and platform vision
- [Contact](https://learnbook.ai/contact): Support and feedback

## Who It's For

University and graduate students, exam takers, researchers and knowledge workers, lifelong learners and heavy readers, plus independent creators, instructors, and training teams who need to turn material into courses.

## How LearnBook Compares

LearnBook is positioned as a full learning-loop platform, not a single-feature tool. Comparison and alternatives pages cover:

- **vs. NotebookLM** — NotebookLM is strong at grounded Q&A over your sources; LearnBook adds spaced-repetition review, quizzes, mastery tracking, and course generation on top of cited reading.
- **vs. Notion AI / Obsidian** — Note tools with AI bolted on; LearnBook is learning-first, with FSRS review, quizzes, and a study-activity-driven knowledge graph.
- **vs. Anki / Quizlet / RemNote** — Flashcard and SRS tools; LearnBook auto-generates cards and quizzes from your own sources and grounds them in the original material.
- **vs. ChatPDF / PDF.ai / Humata** — Document Q&A tools; LearnBook keeps the answer in a closed loop with review, retention, and course output.

## Supported Languages

en, zh, es, fr, de, ja, ko, ru, it, pt, nl, ar, th, vi, sv, tr, pl, he (18 locales).

## Academic Integrity

LearnBook is a learning aid focused on understanding and retention. It does not provide ghostwriting, AI "humanizers," or tools to evade AI-detection.

## Further Reading

- [llms-full.txt](https://learnbook.ai/llms-full.txt): Long-form, citation-friendly reference (full feature detail, comparison context, workflow recipes, and FAQ)
- [Sitemap](https://learnbook.ai/sitemap.xml): Canonical URLs across all locales

## Contact

- Website: https://learnbook.ai
- Email: support@learnbook.ai