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Lumo by Proton on Windows Pc

Developed By: Proton AG

License: Free

Rating: 3,6/5 - 2.615 votes

Last Updated: August 04, 2026

Download on Windows PC

Compatible with Windows 10/11 PC & Laptop

App Details

Version 1.2.13-gms
Size 59.5 MB
Release Date December 23, 25
Category Productivity Apps

App Permissions:
Allows applications to open network sockets. [see more (6)]

What's New:
Lumo 2.0.3 focuses on a faster, smoother startup — the app launches quicker and loading, background, and keyboard animations no longer stutter. The loading and... [see more]

Description from Developer:
"Lumo is a zero-access encrypted AI assistant that keeps every conversation private. Your data is never logged, shared, or used to train models. Your chats are yours, and your... [read more]

App preview ([see all 22 screenshots])

App preview

About this app

On this page you can download Lumo by Proton and install on Windows PC. Lumo by Proton is free Productivity app, developed by Proton AG. Latest version of Lumo by Proton is 1.2.13-gms, was released on 2025-12-23 (updated on 2026-08-04). Estimated number of the downloads is more than 100,000. Overall rating of Lumo by Proton is 3,6. Generally most of the top apps on Android Store have rating of 4+. This app had been rated by 2,615 users, 1,162 users had rated it 5*, 456 users had rated it 1*.

How to install Lumo by Proton on Windows?

Instruction on how to install Lumo by Proton on Windows 10 Windows 11 PC & Laptop

In this post, I am going to show you how to install Lumo by Proton on Windows PC by using Android App Player such as BlueStacks, LDPlayer, Nox, KOPlayer, ...

Before you start, you will need to download the APK/XAPK installer file, you can find download button on top of this page. Save it to easy-to-find location.

[Note] You can also download older versions of this app on bottom of this page.

Below you will find a detailed step-by-step guide, but I want to give you a fast overview of how it works. All you need is an emulator that will emulate an Android device on your Windows PC and then you can install applications and use it - you see you're playing it on Android, but this runs not on a smartphone or tablet, it runs on a PC.

If this doesn't work on your PC, or you cannot install, comment here and we will help you!

  1. Install using BlueStacks
  2. Install using NoxPlayer

Step By Step Guide To Install Lumo by Proton using BlueStacks

  1. Download and Install BlueStacks at: https://www.bluestacks.com. The installation procedure is quite simple. After successful installation, open the Bluestacks emulator. It may take some time to load the Bluestacks app initially. Once it is opened, you should be able to see the Home screen of Bluestacks.
  2. Open the APK/XAPK file: Double-click the APK/XAPK file to launch BlueStacks and install the application. If your APK/XAPK file doesn't automatically open BlueStacks, right-click on it and select Open with... Browse to the BlueStacks. You can also drag-and-drop the APK/XAPK file onto the BlueStacks home screen
  3. Once installed, click "Lumo by Proton" icon on the home screen to start using, it'll work like a charm :D

[Note 1] For better performance and compatibility, choose BlueStacks 5 Nougat 64-bit read more

[Note 2] about Bluetooth: At the moment, support for Bluetooth is not available on BlueStacks. Hence, apps that require control of Bluetooth may not work on BlueStacks.

How to install Lumo by Proton on Windows PC using NoxPlayer

  1. Download & Install NoxPlayer at: https://www.bignox.com. The installation is easy to carry out.
  2. Drag the APK/XAPK file to the NoxPlayer interface and drop it to install
  3. The installation process will take place quickly. After successful installation, you can find "Lumo by Proton" on the home screen of NoxPlayer, just click to open it.

Discussion

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Download older versions

Other versions available: 1.2.13-gms , 1.2.12-gms , 1.2.11-gms.

Download Lumo by Proton 1.2.13-gms on Windows PC – 59.5 MB

Download Lumo by Proton 1.2.12-gms on Windows PC – 53.4 MB

Download Lumo by Proton 1.2.11-gms on Windows PC – 54.3 MB

"Lumo is a zero-access encrypted AI assistant that keeps every conversation private. Your data is never logged, shared, or used to train models. Your chats are yours, and yours alone.

Built by Proton, the privacy brand trusted by over 100 million people and the team behind Proton Mail, VPN, Drive, and Pass.

THOUGHTFUL HELP FOR ANY TASK
Lumo handles everything from quick questions to more complex work. Choose Fast for quick answers or Thinking for multi-step reasoning.

FAST, POWERFUL WEB SEARCH
Get precise, real-time answers in seconds. Lumo cites live sources so you can verify facts, dig deeper, and stay current on news, events, financial data, and more.

CREATE AND REFINE IMAGES AND FILES
Work with images and documents just by telling Lumo what you need, from generating and editing images to analyzing documents. Connect your Proton Drive account for seamless access to stored files.

AI THAT EVOLVES OVER TIME
Lumo gets better every time you use it. Memory retains context and preferences across sessions, and you can set tones and styles to get the exact Lumo experience you want.

STAY PRODUCTIVE AND ORGANIZED
Projects give you dedicated encrypted spaces for tasks that span multiple chats, files, and instructions, while Custom Lumos let you create assistants tailored for specific tasks. Switch between light and dark modes for a more comfortable experience throughout the day.

GHOST MODE
For conversations where you want maximum privacy, choose Ghost Mode. Chats are instantly deleted once you close them for greater peace of mind.

PRIVACY YOU CAN VERIFY
Lumo is founded on zero-access encryption with no server-side chat logs, and never uses your data for profit or model training. Like all Proton products, Lumo is built and hosted in Europe and is fully open-source.

Lumo helps you stay productive, curious, and informed — without ever compromising your privacy. Start a confidential chat for free today.

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"
Lumo 2.0.3 focuses on a faster, smoother startup — the app launches quicker and loading, background, and keyboard animations no longer stutter. The loading and offline screens have been rebuilt as native screens, including a new connection-error screen. We've also polished the interface so the status and navigation bars match the app background.
Allows applications to open network sockets.
Allows applications to access information about networks.
Allows an application to record audio.
Allows an application to write to external storage.
Allows read only access to phone state, including the phone number of the device, current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device.
Allows an application to read from external storage.