Data protection declaration

1. General information

The protection of your personal data is particularly important to us. We therefore process your data exclusively on the basis of the legal provisions (GDPR, TMG).

2. Responsible body

Responsible for data processing on this website is:

Dario Bährle Ulmenstrasse 36 86899 Landsberg Email: info@obolusfinanz.de

3. Entry data

When visiting this website, technically necessary data is processed. This includes server logs and a pseudonymous visitor ID in the browser (localStorage) to count visits and reduce abuse. Requests may also process IP address and user-agent data in the database.

4. Server log files

The hosting provider of this site automatically collects and stores information in so-called server log files, which your browser automatically transmits. These are, for example:

  • Browser type and version
  • Operating system used
  • Referrer URL
  • Hostname of the accessing computer
  • Time of the server request

This data cannot be assigned to certain people and are not merged with other data sources.

5. Your rights

You basically have the following rights:

  • Information about your stored data
  • Correction of incorrect data
  • Deletion of your data
  • Restriction of processing
  • Data portability
  • Objection to processing

If you believe that the processing of your data violates data protection law, you can complain to the responsible supervisory authority.

6. Contact

If you have any questions about data protection, please contact the person responsible above.

7. Use of cookies to store display preferences

A technically necessary cookie is used on this website to save your choice of display design (e.g. dark mode). This cookie contains no personal data and is used solely for user convenience. Consent is not required for this as it is a functionally necessary setting.

8. Account system, database and cloud storage

If you create an account or use cloud features, this website processes authentication data and selected finance/scenario data via Supabase (authentication and database). This may include, for example, email address, profile data, saved scenarios, and technical metadata. Data is only stored for features you actively use (e.g., save/load in your account). Without an account, inputs generally remain local in your browser. For more details, please refer to Supabase's Privacy Policy:

https://supabase.com/privacy

9. API, MCP and ChatGPT app access logs

When you use the public API, the MCP endpoint, or the Obolus ChatGPT app, technically necessary access data may be processed to provide the services, protect against abuse, enforce rate limits, analyze errors, and maintain stability. The calculation tools process the salary, tax, and comparison inputs you submit in order to perform the requested calculation.

  • Route, HTTP method, tool name, status code, and response time
  • IP address, user-agent, and rate-limit information
  • whether an API key was provided, whether it was valid, and a hash of the API key; the raw API key is not stored in access logs
  • validation errors, technical error details, and limited technical metadata such as cache status
  • for API-key usage, technical usage data such as last use and route used

This data is not used for advertising and is not sold. It is retained only for as long as needed for security, troubleshooting, abuse prevention, auditability, and legal obligations. You can exercise access, correction, deletion, and objection rights through the contact address above.