# Lumo vs Gemini Notebook

> Lumo: Privacy-first AI assistant from Proton with zero-access encrypted chats and no logging
> Gemini Notebook: Google's Gemini Notebook, formerly NotebookLM, answers questions and builds summaries from your own sources

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

## Verdict

Lumo and Gemini Notebook are both AI Assistants tools. Gemini Notebook scores higher in FinderAtlas's editorial review (8.7 vs 7.6 out of 10), led by value for money. Both have a free plan or trial.

### Choose Lumo if

- You want a tool built for everyday AI chat, web-assisted questions, document and image work without conversation logging or training on user data.
- Zero-access encryption on saved chats, with a stated no-logging policy.
- Open-source code and open-source models that can be inspected.

### 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

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

## Features

| Feature | Lumo | Gemini Notebook |
| --- | --- | --- |
| Zero-Access Encrypted Chats | Yes | Not listed |
| Open-Source Models | Yes | Not listed |
| Web Search | Yes | Not listed |
| Image Generation and Editing | Yes | Not listed |
| Projects | Yes | Not listed |
| Custom Lumos | Yes | Not listed |
| Proton Drive Integration | Yes | Not listed |
| Guest Mode | Yes | Not listed |
| Memory and Personalization | 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 | Lumo | Gemini Notebook |
| --- | --- | --- |
| Web | Yes | Yes |
| Windows | No | No |
| macOS | No | No |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | No | No |
| Browser Extension | No | No |

## Lumo strengths

- Zero-access encryption on saved chats, with a stated no-logging policy.
- Open-source code and open-source models that can be inspected.
- Permanent free tier with guest access and no credit card.
- Web, iOS and Android apps.
- Run by Proton AG, a Swiss company, and stated to comply with GDPR.

## Lumo limitations

- Free chat history is kept for only 7 days.
- Uses open-source models rather than the proprietary frontier models of larger rivals.
- No desktop app or public API found.
- Lumo Plus limits are described only as "more" than Free, not as numbers, and the plan costs $12.99/month ($9.99/month billed annually).

## 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 Lumo better than Gemini Notebook?**

It depends on your workflow. Lumo is built for everyday AI chat, web-assisted questions, document and image work without conversation logging or training on user data. Gemini Notebook is built for summarizing and questioning your own documents.

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

Lumo: Privacy-first AI assistant from Proton with zero-access encrypted chats and no logging. Gemini Notebook: Google's Gemini Notebook, formerly NotebookLM, answers questions and builds summaries from your own sources.

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

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

**Which is cheaper, Lumo 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.