
Proton
Analyze sensitive data without leaks
Extract insights while the content stays out of future AI answers.
- Start free, no credit card
- Plus is $9.99/month billed yearly
- 30-day money-back on Plus

Budgets, sales tables and research findings are exactly what people hesitate to paste into an AI tool.
Give Lumo a table or report and it reads it line by line, surfaces the key insights, points out trends and condenses everything into a summary.
Proton says analyzed information will not appear in future AI outputs. The conversation itself is stored with zero-access encryption, so only you can read it.
You can also link files and folders from Proton Drive to keep context while reviewing code or managing projects.
For teams there is Lumo for Business, where conversations stay encrypted and under the organization's control.
Deals you can use now
| Deal | Code | Conditions |
|---|---|---|
| FreeStart on the free plan with no card | — | The free plan limits Max model usage, messages and chat history, and image generations, with 1 Project. |
See Proton Lumo in detailThe AI chat that keeps chats privateTurn a description into an image · Pick Lite or Max for the job · Pull insights from confidential data · Turn a messy to-do list into a planFAQ
Is analyzed data used for training?
Proton says the information will not appear in future AI outputs.
What tasks suit it?
Report summaries, research findings, trend spotting, code review and project management.
Is there a business version?
Yes, Lumo for Business is a separate offering for teams.
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