Reviewed by the Softwares.com Editorial Team · Last updated June 2026 · How we rate
Key facts
- Vendor
- Proton
- Pricing
- Freemium — Free – $12.99/mo
- Free tier
- Yes
- Platforms
- Web, Ios, Android
- Best for
- Privacy Conscious Users, Professionals
- Editor rating
- 4.2 / 5
- Founded
- 2025
- Headquarters
- Geneva, Switzerland
What is Lumo?
Lumo is a ai chatbots tool from Proton. An encrypted AI chat assistant from the makers of Proton Mail that keeps conversations private with no logs and end-to-end encrypted chat history.
Lumo uses freemium pricing and offers a free tier you can start on without a credit card. Free – $12.99/mo.
It's best suited to privacy-conscious users, professionals and runs on Web, Ios, Android.
Standout strengths include strong privacy, no chat logging, from trusted vendor. Worth weighing: fewer features than rivals, newer model.
Lumo pricing
Pros
- Strong privacy
- No chat logging
- From trusted vendor
Cons
- Fewer features than rivals
- Newer model
Lumo vs alternatives
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Frequently asked questions
What is Lumo?
An encrypted AI chat assistant from the makers of Proton Mail that keeps conversations private with no logs and end-to-end encrypted chat history.
How much does Lumo cost?
Lumo is freemium-priced. It has a free tier. Paid plans start at $12.99/mo.
Does Lumo have a free trial?
Lumo offers a free tier rather than a time-limited trial.
What platforms does Lumo support?
Lumo is available on Web, Ios, Android.