I Tried Lumo AI—And It Actually Respects My Privacy

I've been skeptical of AI assistants. Not because they aren't useful, but because every one I've tried seems designed to vacuum up as much of my data as possible. My conversations, my writing, my questions—all fed into systems I have no visibility into. Then I found Lumo.

Lumo is made by Proton, the same company behind Proton Mail and Proton VPN. If you know anything about Proton, you know privacy is their whole identity. Lumo carries that same philosophy: your chat history is protected with zero-access encryption, meaning even Proton can't read it. Only you can, on your own devices.

I've been using it for drafting emails, brainstorming blog ideas, and asking quick research questions. It handles all of that well. The writing assistance is solid without being overly polished—it leaves room for your own voice. It also integrates with the Proton ecosystem, so if you're already using Proton Mail or Drive, it fits naturally into your workflow.

There's a free tier with basic features, and Lumo Plus unlocks web search, unlimited usage, and extended capabilities for $12.99 a month. The mobile apps are available on iOS and Android, which makes it easy to use on the go.

What keeps me coming back isn't just the functionality. It's the peace of mind. I can ask personal questions, draft sensitive documents, and explore ideas without wondering who's building a profile on me. That shouldn't be rare in AI—but right now, it is.

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