Lumina

Terms of Use

Effective: May 2026

This is a convenience translation. In the event of any discrepancy or conflict between the German and English versions, the German version shall prevail and be legally binding.

1. Scope of Application

1.1. These Terms of Use govern the contractual relationship between Dennis Heinz, Eltropweg 30, 48155 Münster, Germany (hereinafter referred to as the "Provider") and the registered users (hereinafter referred to as the "Users") of the web application "Lumina" (hereinafter referred to as the "Service").

1.2. By registering for the Service, the User expressly agrees to these Terms of Use.

2. Subject Matter of the Service

2.1. "Lumina" is a free-of-charge offering ("Beta Version") that enables Users to create and organise their own private notes, canvases, links, files, and to use AI-powered features. Lumina can be used either locally (without an account, with data stored on the User's own device) or with an optional account for cloud sync.

2.2. No Sharing Function: The content created is intended exclusively for the User's personal use. A function for public sharing or publication of content is not included in the current scope of functionality.

2.3. The Service is provided on an "as is" basis. There is no entitlement to:

Warning Notice: As this is a free beta version, Users are strongly advised to back up important content separately. The Provider assumes no liability for any loss of data.

2.4. Modification and Termination of the Service: The Provider reserves the right to modify, suspend, or discontinue the Service at any time. In the event of discontinuation, the Provider will notify Users at least 30 days in advance via email and provide them with the opportunity to export their data. Immediate shutdown is possible in the event of security threats or other compelling technical or legal reasons.

3. Registration and User Account

3.1. Local use of the Service does not require registration. Use of the optional cloud sync features (server-side storage of canvases and notes, server-side AI chat history) requires registration by providing an email address and a password.

3.2. The User is obliged to keep the password confidential and to protect it from access by third parties.

4. User Content

4.1. Users may store their own texts, notes, canvases, links, and files (in particular images and PDFs) within the Service.

4.2. Grant of Rights: The User retains all rights to their content. The User grants the Provider solely the technical right to store and process the content on the Provider's servers to the extent necessary for providing the Service to the User. No publication or disclosure to third parties shall take place.

4.3. Prohibited Content: Even in the context of private use, it is prohibited to store content on the servers that violates applicable German law (e.g. unconstitutional symbols, child sexual abuse material, or instructions for committing criminal offences). Upon becoming aware of such content, the Provider reserves the right to immediately suspend the User account and delete the content.

5. AI Features

5.1. The Service may offer AI-powered features (e.g. chat, automatic generation of content). When using these features, data is transmitted to external AI providers (Anthropic, OpenAI); for details, see the Privacy Policy.

5.2. No Warranty for AI Outputs: The Provider provides no warranty for the accuracy, completeness, or suitability of AI-generated content. Users are themselves responsible for reviewing and using such content.

6. Liability

6.1. For the free use of the Service, the Provider shall be liable, in accordance with the statutory provisions applicable to gratuitous services under German law (Section 521 of the German Civil Code – Bürgerliches Gesetzbuch, BGB), only in cases of intent (Vorsatz) and gross negligence (grobe Fahrlässigkeit).

6.2. Any further liability, in particular for data loss or availability of the Service, is excluded.

7. Final Provisions

7.1. The law of the Federal Republic of Germany shall apply.

7.2. Should any provision of these Terms of Use be or become invalid or unenforceable, the validity of the remaining provisions shall remain unaffected.