Privacy policy

Last updated: October 17, 2026

At calculocompuesto.com we respect your privacy. This policy explains what information is processed when you use this website and what your rights are, in accordance with the EU General Data Protection Regulation (GDPR) and applicable law.

Data controller

Contact: or via the contact form. More information in the legal notice.

Data you enter in the calculator

All calculations take place exclusively in your browser. The numbers you enter (principal, contributions, interest rate, time period, etc.) are never sent to or stored on our servers. If you share a result, those numbers are included in the link you choose to share.

Local storage and cookies

This website does not use cookies, either our own or third-party. We use your browser's local storage (localStorage) only to remember your preferences: light or dark mode, currency and language. This information stays on your device, is never sent to any server and can be deleted at any time from your browser settings.

Server logs

Like any website, our hosting provider may automatically log technical data (IP address, date and time, requested page and browser type) to ensure the security and proper operation of the service. The legal basis is legitimate interest, and these logs are kept for the limited period set by the provider.

Share buttons

The Facebook, WhatsApp, X and Telegram buttons are plain links: they do not load any code from these platforms or send them any data while you browse this website. Only if you click one of them will the corresponding platform open, and it will process your data according to its own privacy policy.

Contact form and email

If you write to us using the contact form or by email, we will process your name, your email address, the reason for contacting us and the content of your message for the sole purpose of answering your enquiry. The legal basis is your consent, which you give by ticking the box and submitting the form, and which you may withdraw at any time. Messages are received in our mailbox, are never published or shared with third parties unless required by law, and are kept only for as long as needed to deal with your enquiry.

To protect the form against automated submissions we use our own captcha and a small computation performed by your browser, with no third-party services and no cookies. To prevent abuse, we keep an encrypted, irreversible fingerprint of your IP address (never the IP itself) for a maximum of 24 hours, based on our legitimate interest in keeping the service secure.

Advertising

This website currently shows no advertising and uses no analytics tools. If they are added in the future, we will update this policy and, where required, ask for your prior consent.

Your rights

You can exercise your rights of access, rectification, erasure, objection, restriction of processing and data portability by writing to . You also have the right to lodge a complaint with the Spanish Data Protection Agency (www.aepd.es) or with the supervisory authority in your country.

Changes to this policy

We may update this policy to reflect legal or service changes. The date of the latest update is shown at the top of this page.