Lumo by Proton

Your Private AI Assistant

Published by: Proton

Description

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.
For more information visit our website: https://lumo.proton.me/about
Terms of service: https://lumo.proton.me/legal/terms
Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Our open-source code base: https://github.com/ProtonLumo/ios-lumo
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Screenshots

Lumo by Proton FAQ

  • Is Lumo by Proton free?

    Yes, Lumo by Proton is completely free and it doesn't have any in-app purchases or subscriptions.

  • Is Lumo by Proton legit?

    🤔 The Lumo by Proton app's quality is mixed. Some users are satisfied, while others report issues. Consider reading individual reviews for more context.

    Thanks for the vote

  • How much does Lumo by Proton cost?

    Lumo by Proton is free.

  • What is Lumo by Proton revenue?

    To get estimated revenue of Lumo by Proton app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.

User Rating
App is not rated in Malta yet.
Ratings History

Lumo by Proton Reviews

Good

Cardzic on

United States

Needs better picture upload option otherwise live the privacy and security of this app

Another Half Baked Proton App

AppStoreNickName21 on

United States

Lumos training data is from April 2024 No Voice Mode like ChatGPT No Image Generation Cannot take pictures and directly upload into your Lumo chat Common image formats cannot be uploaded to Lumo chat No Apple Watch or MacOS dedicated apps Often repeats my question as the response Intermittently errors saying unavailable Not good at remembering past chats Still the best option if you’re looking for privacy. It’s time to actually finish your apps and ecosystem. People are leaving because of issues and lack of features.

Stopped Working Briefly

Highlightsgiggling on

United States

Stopped working with new update. After a couple of triesand some time later is working again.

Amazing AI

Abi is da bomb on

United States

This AI is incredible. It’s useful, fairly accurate, doesnt give ads, and doesnt take your data. Do yourself a favor and uninstall chat gpt for Lumo

Два обновления даже не открывается просто белый экран

D13Charic13 on

United States

Не работает

Great AI model hindered by a buggy interface

scvn2812 on

United States

The AI’s responses are generally excellent and relevant but its fondness for tables when answering complex questions means it overflows the screen real estate and both vertical and horizontal scrolling is very unreliable.

Buggy

JustinHoMi on

United States

The app is really buggy. I’m going to have to wait until they get the UI working better.

It’s easy to use, but it‘s been on the machine recently.

⚽️n on

United States

It’s easy to use, but it‘s been on the machine recently.

Intermittent freezing!!

Upper west on

United States

Hi. I love the idea of this app and your products. That said, as I’ve been giving this app a try over the last few days, I’ve noticed it will intermittently freeze while displaying results and I’m unable to scroll and read the full result. Nothing helps when this occurs beyond killing the app and trying all over again.

Improving Fast

MW_G_Str on

United States

The models have improved substantially. Scrolling often gets stuck.

Store Rankings

Ranking History
App Ranking History not available yet
Category Rankings
Chart
Category
Rank
Top Grossing
45
Top Free
70
Top Free
319
Top Free
324
Top Free
343

Lumo by Proton Installs

Last 30 days

Lumo by Proton Revenue

Last 30 days

Lumo by Proton Revenue and Downloads

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App Info

Publisher
Proton
Languages
English, Czech, Dutch, French, German, Italian, Polish, Portuguese, Russian, Spanish, Turkish
Recent release
1.2.5 (1 week ago )
Released on
Jul 23, 2025 (4 months ago )
Last Updated
2 days ago
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