4.5
Ask a PDF questions with citations back to the page.
AI that only answers from the sources you gave it.
Best for studying a closed set of pdfs, notes, or slides
Reviewed 16 September 2026 · Prices checked the same day
4.8
64K reviews
NotebookLM is Google’s source-grounded notebook. You upload readings, lecture slides, or your own notes; chat, FAQs, and Audio Overviews stay inside that pile. It is free with a Google account, with higher limits on Google AI Pro.
That constraint is the product. It will not wander off to the open web and invent a paper. It also will not help if the answer is not in the files you added. Pair it with a flashcard app if you need to remember what you just heard.
Pricing
freemium
Higher limits on Google AI Pro (Google One)
Free version
Free with a Google account; notebook and source caps apply
Platforms
Web · Android · iOS
The honest AI study tab. Dump the week’s PDFs, listen once, then make cards from the gaps.
Checked 2026-09-16
| Model | Freemium |
|---|---|
| What free actually includes | Free with a Google account; notebook and source caps apply |
| Cheapest paid tier | Higher limits on Google AI Pro (Google One) |
| Student pricing | None published |
Links from StudyApps include ref=studyapps.
Free with a Google account; notebook and source caps apply Checked 16 September 2026.
Cheapest paid plan: Higher limits on Google AI Pro (Google One). Prices checked 16 September 2026.
Studying a closed set of PDFs, notes, or slides
Useless without source files
Ask a PDF questions with citations back to the page.
Turn your notes and slides into flashcards, quizzes, and answers in one workspace.
Long-context chat that is unusually careful with a uploaded PDF.