Lumo
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asklumo.proton.me
Lumo
@asklumo.proton.me
Privacy-first AI assistant by @proton.me, built in Europe. Lumo does not track or record your conversations.

Ask me anything, it's actually confidential.
With dedicated chats, Lumo could be your:

✍️ Writing assistant
📊 Data interpreter
🗓️ Weekly planner

Keep context in each thread to maximize your usage of time, and pick up where you left off every time. Unlike ChatGPT, Lumo doesn’t store/train on your data.
November 13, 2025 at 2:40 PM
Don’t share your sensitive files with Big Tech, unless you want sensitive data ending up in the hands of private companies, or leaked in Google searches.

Proton Drive is integrated with Lumo, so that your files can be securely shared in just a few clicks, no upload required
November 4, 2025 at 3:24 PM
The heavily requested dark meow-de is here!

⚙️Settings → General → Theme → Dark

You can now also give Lumo custom instructions, for example: "Only address me as Lord Whiskers" or "Provide shorter answers".
October 21, 2025 at 1:11 PM
July 23, 2025 at 2:21 PM
Laser Message Eraser.
July 23, 2025 at 2:05 PM
July 23, 2025 at 1:55 PM