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Active Recall & AI Collaboration

NotebookLM with Spaced Repetition & Study Rooms

Love NotebookLM's source-based AI but need structured testing to remember it? GRIT Books turns your PDFs, textbooks, and videos into active study suites with FSRS spaced repetition, interactive tasks, and live study rooms.

Built to Help You Retain, Not Just Retrieve

Compare the note-taking and active recall differences between GRIT Books and NotebookLM.

FeatureGRIT BooksNotebookLM
Spaced Repetition Scheduler
Built-in FSRS active recall algorithm
Static study guides (no timed reviews)
Collaborative Study Rooms
Live study rooms with whiteboard & video
Single-user notebook view only
Interactive Tasks & Planner
Smart planner syncs deadlines & study goals
Not available
Multi-Source AI Generation
Import PDFs, Syllabi, web pages & YouTube
Import PDFs, Google Docs & web links
Offline & Native Mobile Apps
Cross-platform mobile wrapper & sync
Web-only interface (no native apps)
Weekly Parent Summaries
Sends performance updates to parents
Not available
Core Cost
Free Forever (Pro tier available)
Free (Experimental stage)

AI Source to Active Review

Instead of just asking questions, instantly generate customized flashcard decks and study guides from your source files.

FSRS Spaced Repetition

Our scheduler prompts you to review key concepts right before you are about to forget them, optimizing long-term retention.

Group Study Integration

Invite classmates to your study rooms to quiz each other, edit whiteboards, and work through complex notebook guides together.

Loved by Students

NotebookLM generated great study guides, but I had no way to test myself systematically. GRIT Books does both seamlessly.

Liam O., Bioengineering Junior

The collaborative rooms and task planner make group projects actually manageable. The offline mobile app is a lifesaver.

Sophia V., High School Senior

I imported my 100-page biology PDF. Not only can I query it with AI, but the spaced repetition cards have kept my recall perfect.

Ethan D., Pre-Med Student

Active Recall Meets Source-Based AI.

Don't just read your sources. Lock them into your long-term memory with customized review structures.

Try GRIT Books Free