Privacy Policy

How data is handled on this website, under the EU's GDPR (Regulation 2016/679) and applicable Spanish data protection law.

Note: this English page is a courtesy translation. The legally authoritative version is the Spanish Pol铆tica de Privacidad.

1. Data controller

2. What data is processed

In its basic operation, this website does not collect personal data through forms and does not require registration. The calculations you perform in the calculator are processed entirely in your own browser and are never sent to any server.

The only information stored is local to your device (via localStorage), such as the last values you entered in the calculator, so you don't have to re-enter them on your next visit. This data never leaves your browser and is not accessible to the site owner.

3. Cookies and similar technologies

This site uses Vercel Web Analytics, a privacy-friendly analytics service that does not use tracking cookies and does not collect personal data. If ads are activated in the future, third-party cookies may be installed. Full details are available in the Cookie Policy.

4. Data that may be collected by the hosting provider

The hosting provider where this site is published (e.g. Vercel) may automatically log basic technical data (IP address, browser, pages visited) for security and traffic statistics purposes, under its own privacy policy. Check the specific hosting provider's policy for details.

5. Your rights

If this website ever collects personal data (for example, through a future contact form), you can exercise your rights of access, rectification, erasure, objection, restriction, and portability by writing to info@presuia.com.

6. Changes to this policy

This policy may be updated to reflect legal changes or new site features. The date of the last update is shown at the bottom of this page.

Last updated: July 8, 2026.