r/lumo↗
Lumo by Proton - AI that respects your privacy
Lumo is the world’s only privacy-first AI assistant, created by the scientists behind Proton Mail, the world’s largest encrypted email service. Lumo is free and open source, secured with zero-access encryption, and based in Europe. No ads, no logs, no training on user data. Safely ask anything, it’s actually confidential.
11k subscribers135 posts / mo in Sep 2026 (incl. ~3% by known bots)106 authors / mosince 2024
r/lumo has 11k members. It gets about 135 posts a month from 106 people. Top topics: ProtonMail Apps & Email, Verizon Outages and Chat History & Deletion.
When to post on r/lumo
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How r/lumo has grown
Subscriber growth
Subscribers over time
Monthly activity
Posts, comments and authors per month
Topics and brands on r/lumo
Top topics
Share of the subreddit's posts
- ProtonMail Apps & Email2.2%
- Verizon Outages1.6%
- Chat History & Deletion1.0%
- Email Privacy & Security0.9%
- Dark Mode0.9%
Brands people mention
Most-mentioned brands and sites, last 12 months
- Proton
- Uservoice
- Mozilla
- Venice AI
- Artificialanalysis
Everything else about r/lumo
Posting rules and account requirements, how often posts get removed, who writes here (age, gender, countries), what people ask for, how they talk, and related subreddits — all in the full report.
Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research