Lumo
Privacy-first AI assistant for confidential conversations
What is Lumo? Complete Overview
Lumo is a privacy-first AI assistant designed to ensure that all your conversations remain confidential. Unlike other AI assistants, Lumo does not record or store your chat history, providing a secure and private way to interact with AI. It is built with a strong emphasis on privacy, ensuring that not even Proton can access your conversations. This makes Lumo an ideal choice for users who prioritize data security and confidentiality in their digital interactions. The tool is suitable for general users, professionals, and enterprises that require a secure AI assistant for sensitive communications.
Lumo Interface & Screenshots

Lumo Official screenshot of the tool interface
What Can Lumo Do? Key Features
Confidential Conversations
Lumo ensures that all your chats remain private and are not recorded. Unlike other AI assistants, your conversations with Lumo are not stored, providing a truly confidential experience.
No Data Access
Even Proton, the platform behind Lumo, cannot access your chat history. This guarantees that your conversations are safeguarded against any unauthorized access.
Respect for Privacy
Lumo does not use your conversations for training purposes. Your data is treated with the utmost respect and is never utilized to improve the AI model.
Web Search
Lumo allows you to perform web searches while maintaining your privacy. You can ask questions and get answers without compromising your data.
Upload Functionality
You can upload files or documents to Lumo for analysis or queries, ensuring that your data remains private and secure throughout the process.
Best Lumo Use Cases & Applications
Confidential Business Communications
Professionals can use Lumo to discuss sensitive business matters without the risk of their conversations being recorded or accessed by unauthorized parties.
Private Personal Queries
Individuals can ask personal or health-related questions with the assurance that their privacy is protected and their data is not used for training or other purposes.
Secure Research
Researchers can use Lumo to gather information and analyze documents securely, ensuring that their work remains confidential.
How to Use Lumo: Step-by-Step Guide
Visit the Lumo website at https://lumo.proton.me.
Start a conversation by typing your question or uploading a file in the chat interface.
Use the web search feature if you need information from the internet, knowing that your query remains private.
Receive instant, confidential responses from Lumo without any data being stored or accessed by third parties.
Lumo Pros and Cons: Honest Review
Pros
Considerations
Is Lumo Worth It? FAQ & Reviews
Yes, Lumo ensures that all your conversations are confidential and not recorded. Not even Proton can access your chat history.
Absolutely. Lumo is designed to handle sensitive topics with the highest level of privacy and security.
No, Lumo does not store or record any of your conversations, ensuring complete privacy.
Yes, Lumo is currently free to use with all its privacy-focused features.
Yes, you can upload files for analysis or queries, and your data will remain private and secure.