Audience

Individuals and professionals in search of an AI tool for drafting, coding, and summarizing

About Lumo

Lumo is a privacy-first AI assistant built to deliver the power of generative AI while keeping your conversations completely confidential. Developed by the privacy experts behind Proton Mail and VPN, Lumo ensures that your dialogues remain yours alone, no logs are stored on the server side, and all saved chats are encrypted with zero-access encryption, meaning even Proton cannot read them. Open source by design, the service is transparent and verifiable. You can ask Lumo anything, from summarizing documents and rewriting emails to coding assistance, translations, brainstorming, and more, without any risk of your data being used to train models or shared with third parties. Conversations are encrypted end-to-end, and even the AI’s web search capability (if enabled) runs through privacy-friendly engines. Available without signup and deployable via web or mobile apps, Lumo offers both free and plus plans.

Pricing

Starting Price:
€9.99 per month
Free Version:
Free Version available.

Integrations

No integrations listed.

Ratings/Reviews - 1 User Review

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5
support 5.0 / 5

Company Information

Proton AG
Founded: 2014
Switzerland
lumo.proton.me/

Videos and Screen Captures

Lumo Screenshot 1
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Product Details

Platforms Supported
Cloud
iPhone
iPad
Android
Training
Documentation
In Person
Support
Phone Support
Online

Lumo Frequently Asked Questions

Q: What kinds of users and organization types does Lumo work with?
Q: What languages does Lumo support in their product?
Q: What kind of support options does Lumo offer?
Q: Does Lumo have a mobile app?
Q: What type of training does Lumo provide?
Q: How much does Lumo cost?

Lumo Product Features

Lumo Verified User Reviews

Write a Review
  • A Lumo User
    Chief Admin
    Used the software for: Less than 6 months
    Frequency of Use: Daily
    User Role: User, Administrator
    Company Size: 1 - 25
    Design
    Ease
    Features
    Pricing
    Support
    Probability You Would Recommend?
    1 2 3 4 5 6 7 8 9 10

    "Outstanding!"

    Edited 2025-10-06

    Pros: Easy to use and ask questions. Answers are easy to understand, helpful and on target. Totally PRIVATE, they are NOT earning money by selling my data - thus I pay for it.

    Cons: None found yet. Been using only a couple of months - but had tried ChatGPT, and CoPilot before.

    Overall: Excellent experience. Their "kitty kat" mascot is cute and there whenever I open it, and their answers are very conversational and on target for what I was seeking.

    Read More...
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