# Grammarly vs Gemini Notebook

> Grammarly: AI writing assistant that corrects, rewrites and tone-checks your text across every app
> Gemini Notebook: Google's Gemini Notebook, formerly NotebookLM, answers questions and builds summaries from your own sources

- Grammarly profile: https://finderatlas.com/tools/grammarly
- Gemini Notebook profile: https://finderatlas.com/tools/notebooklm
- Comparison page: https://finderatlas.com/compare/grammarly-vs-notebooklm
- Last reviewed: November 2026

## Verdict

Grammarly and Gemini Notebook are both AI Assistants tools. Gemini Notebook scores higher in FinderAtlas's editorial review (8.7 vs 8.2 out of 10), led by value for money. Both have a free plan or trial. Only Grammarly is available on Windows, macOS and Chrome Extension and offers an API.

### Choose Grammarly if

- You want a tool built for polishing emails and documents in real time across many apps, keeping tone and style consistent across a team.
- Works across desktop, browser, Office, Google Docs and mobile keyboards, so suggestions follow you between apps.
- Free plan covers core grammar, spelling and tone visibility with 100 AI prompts per month.

### Choose Gemini Notebook if

- You want a tool built for summarizing and questioning your own documents.
- Answers cite the uploaded sources, so claims can be checked against the original text.
- Free Standard tier with 100 notebooks and 50 sources per notebook.

## Pricing

| | Grammarly | Gemini Notebook |
| --- | --- | --- |
| Pricing model | Freemium | Freemium |
| Free plan or trial | Yes | Yes |
| Starting price | $0 | $0 |

## Features

| Feature | Grammarly | Gemini Notebook |
| --- | --- | --- |
| Citation Tools | Yes | Not listed |
| Style Guides and Brand Tones | Yes | Not listed |
| Cross-App Availability | Yes | Not listed |
| Enterprise Security Controls | Yes | Not listed |
| Grammar and Mistake Correction | Yes | Not listed |
| Tone Detection and Adjustment | Yes | Not listed |
| Full-Sentence and Paragraph Rewrites | Yes | Not listed |
| AI Detector and Humanizer | Yes | Not listed |
| Plagiarism Checker | Yes | Not listed |
| Source-grounded chat | Not listed | Yes |
| Audio Overviews | Not listed | Yes |
| Video Overviews | Not listed | Yes |
| Study tools | Not listed | Yes |
| Reports, slide decks and infographics | Not listed | Yes |
| Multiple source types | Not listed | Yes |
| Cloud computer | Not listed | Yes |
| Gemini app sync | Not listed | Yes |
| Sharing and public notebooks | Not listed | Yes |

## Platforms

| Platform | Grammarly | Gemini Notebook |
| --- | --- | --- |
| Web | Yes | Yes |
| Windows | Yes | No |
| macOS | Yes | No |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | Yes | No |
| Browser Extension | No | No |
| Chrome Extension | Yes | No |
| Firefox Extension | Yes | No |

## Grammarly strengths

- Works across desktop, browser, Office, Google Docs and mobile keyboards, so suggestions follow you between apps.
- Free plan covers core grammar, spelling and tone visibility with 100 AI prompts per month.
- Pro adds tone adjustment, full-sentence rewrites, plagiarism and AI-text detection in a single subscription.
- Team features include style guides, brand tones, analytics and user groups; Enterprise adds SSO, SCIM and audit logs.
- Public REST APIs exist for analytics, licence management, writing score and detection.

## Grammarly limitations

- Monthly billing for Pro is $30, versus $12 per month on annual billing, so month-to-month use costs 2.5 times as much.
- Third-party tests of the AI Detector report notable false-positive rates (figures range from 14.2% to 34% across sources), so it is unreliable as proof.
- An App Store reviewer criticizes the iOS keyboard setup for pushing users to grant broad access.
- Experienced writers on forums report turning off many suggestions; advanced features are gated behind Pro.

## Gemini Notebook strengths

- Answers cite the uploaded sources, so claims can be checked against the original text
- Free Standard tier with 100 notebooks and 50 sources per notebook
- Wide range of outputs, including Audio Overviews, Video Overviews, mind maps, flashcards, quizzes and slide decks
- Accepts PDFs, websites, YouTube videos, audio files, Google Docs and Google Slides
- Available on web, iOS and Android, and synced with the Gemini app

## Gemini Notebook limitations

- Works from the sources you add and is not built for live web news search
- Higher limits require a Google AI subscription; Ultra starts at $99.99 per month
- The cloud computer for code execution started with Ultra and Workspace AI Ultra Access customers, with Pro rollout still described as upcoming
- No public API for the consumer product, and the renamed brand can make older guides and app listings confusing

## FAQ

**Is Grammarly better than Gemini Notebook?**

It depends on your workflow. Grammarly is built for polishing emails and documents in real time across many apps, keeping tone and style consistent across a team. Gemini Notebook is built for summarizing and questioning your own documents.

**What are the key feature differences between Grammarly and Gemini Notebook?**

Grammarly: AI writing assistant that corrects, rewrites and tone-checks your text across every app. Gemini Notebook: Google's Gemini Notebook, formerly NotebookLM, answers questions and builds summaries from your own sources.

**Does Grammarly or Gemini Notebook have a free plan?**

Yes, both do. Grammarly is freemium and Gemini Notebook is freemium, and each has a free plan or trial.

**Which is cheaper, Grammarly or Gemini Notebook?**

Both can be used for free. Paid plans differ in limits and features, so compare the tiers in the pricing table above.