Lumo by Proton
Conversational AI assistant that encrypts all messages and does not retain conversation history.
≈ 3.4Mvisits/mo
Widely used · estimate, read 2026-09-20
- For
- Teams and organizations seeking encrypted email, storage, and collaboration tools with privacy protections.
- Price
- Free planpricing page, read 2026-09-20
- Activity
- Actively maintainednothing dated on the site
- Company
- founding year not on record
- Send and receive encrypted emails with custom domains
- Collaborate on documents and spreadsheets securely
- #288
Avatar.gift
Runs a personal AI assistant on your iPhone that learns about you and stores all data locally on device.
22 linking domainsnot read— - #291
Clean Page AI
Provides private AI chat with zero data retention and optional in-browser processing.
25 linking domainsActive— - #1
Brave
Browser that blocks ads and trackers, encrypts connections with built-in VPN, and includes private search.
1.4MActiveFrom $3/mo - #2
Synology Inc.
Provides network-attached storage, surveillance, and data protection systems for businesses and homes.
255kActive—2000 - #8
Darktrace
Detects novel threats across networks, email, cloud, and endpoints using behavioral analysis.
68.5knot readContact sales2013 - #9
Canary Mail
Email client with AI-assisted composition, thread summarization, and encryption for managing multiple accounts across devices.
32.5kActiveFrom $36/yr
What is Lumo by Proton?
Conversational AI assistant that encrypts all messages and does not retain conversation history.
Who is Lumo by Proton for?
Teams and organizations seeking encrypted email, storage, and collaboration tools with privacy protections.
How much does Lumo by Proton cost?
Lumo by Proton has a free plan, per its pricing page on 2026-09-20.
Do people use Lumo by Proton?
Widely used: ≈ 3.4M visits a month · estimate, 2026-09.
Is Lumo by Proton still maintained?
Actively maintained.
What are alternatives to Lumo by Proton?
In Security, by use: Avatar.gift, Clean Page AI, Brave, Synology Inc., Darktrace, Canary Mail.
How we read a tool
No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.
- Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
- Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
- Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
- The line and the use cases are written by us from the homepage, one row at a time, and refused when they repeat the vendor's marketing.
How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.