Why Choose 
Instead of
NotebookLM?
Google's NotebookLM has revolutionized how we interact with documents. But for professionals handling sensitive information, there's a critical question: where does my data go?
The Problem with
NotebookLM
Every document you upload to NotebookLM is processed on Google's servers. If you work with client files, confidential reports, or sensitive business data, you're taking an unnecessary risk.
When you upload a document to NotebookLM, Google processes it on their servers. Although they promise not to use it for AI training, your data travels to the cloud and remains stored outside your control.
Detailed Comparison
| Feature | ||
|---|---|---|
| Data privacy | 100% local - your documents never leave your computer | Cloud - documents processed on Google servers |
| Monthly price | From €4.50/month (with offer) | Free limited / $19.99/month (Plus) |
| Works offline | Yes - 100% offline | No - requires connection |
| Spanish legislation | BOE, IRPF, IVA, Corporate Tax integrated | No legal sources |
| Platforms | macOS + Windows (native app) | Web only (browser) |
| Audio and video | Local transcription with Whisper | Audio Overview (podcasts) |
| Citations and sources | Exact references to document | References to document |
| GDPR compliance | Native - data never leaves the EU | Depends on Google configuration |
Which Is Better for You?
Choose 
if...
- You work with confidential client information
- Your company has policies prohibiting cloud data uploads
- You need to consult Spanish legislation frequently
- You want a more economical long-term solution
- You value being able to work without internet
Choose
NotebookLM if...
- You don't handle sensitive or confidential information
- You only need basic free functionality
- You're interested in the podcast feature (Audio Overview)
- You prefer not to install software on your computer
Professional Use Cases
Lawyers and legal advisors: Client information is sacred. With Desktop, your files never leave your computer. You comply with professional secrecy without sacrificing AI power.
Consultants and auditors: Financial reports, strategic plans, due diligence data... Everything is processed locally. Zero leak risk.
Researchers and academics: Your unpublished findings remain private until you decide to share them.
Companies with proprietary data: Patents, formulas, business strategies. With 100% local processing, your competitive advantage is protected.
The Local Advantage
NotebookLM is an excellent tool for public or non-sensitive documents. But when privacy matters,
's local processing is unmatched.
It's not just marketing: you can verify it yourself. Disconnect from the internet, open Desktop, and check that it keeps working perfectly. Your documents never need to leave your machine.
Price vs Value
NotebookLM offers a generous free tier. But
NotebookLM Plus costs $19.99/month.
Professional costs €14.50/month (now €7.25 with offer), and includes:
- 100% private processing
- 5 custom cloud experts
- 5GB storage
- 100 monthly credits for advanced features
- Access to updated Spanish legislation
Conclusion
The choice depends on your priorities:
- Is privacy critical? →
- Only public documents? → Either works
- Need Spanish legislation? →
- Want to work offline? →
- Prefer not to pay anything? →
NotebookLM (with its limitations)
For professionals handling sensitive information, offers the same conversational AI power over documents, but with the guarantee that your data remains under your absolute control.
Want to try the private alternative? Download Desktop for free or try the BOE expert without registration.