Lumo by Proton

Proton AG

In-app purchases

About this app

Ask anything. It’s confidential.

Meet Lumo, the privacy-first AI assistant created by Proton, the team behind encrypted email, VPN, password manager, and cloud storage trusted by over 100 million people.

Lumo helps you stay productive, curious, and informed — without ever compromising your privacy.

Start a confidential chat today.

Ratings and reviews

I seriously tried to like it. I even paid for the year, to support it. I'm so disappointed. Often, when opening the app (or even on the browser) it takes a couple of attempts to just get started. When working, it doesn't provide the sources of its responses. I cannot share images to it to analyse. In its current implementation it's just a sort of verbose search engine. I seriously hope it gets better, soon.

It's okay but I'm somewhat disappointed that this is just a frame of the web version. It can't generate images and you can't directly send photos from your camera without going into your camera app, taking a photo, opening Lumo again, opening the selection menu, and finding the photo. Right now it's very barebones and I wouldn't recommend it. Please Proton, make this review outdated.

Don't use the enter button on my keyboard for starting the prompt, make your own button for that. I want to use my enter button to go down a line, like it was intended to be used. Also when I open the keyboard it hides the text that I'm typing. I will revise my rating when the problems are fixed.