Privacy Policy

This website, electrocalc.dev (the "Site"), is operated by an individual based in Spain, acting as data controller under the General Data Protection Regulation (GDPR) and Spanish data protection law (LOPDGDD).

Contact: contact@electrocalc.dev

We do not collect personally identifiable information directly. The Site stores the following data locally in your browser via localStorage:

• Theme preference — whether you prefer dark or light mode.
• Language preference — English or Spanish.

This data never leaves your device and is not transmitted to any server.

We use Google AdSense to display advertisements. Google AdSense places cookies on your device to serve ads based on your prior visits to this and other websites. This constitutes processing of personal data (cookie identifiers and browsing behaviour) by Google LLC, acting as an independent data controller.

The legal basis for this processing is your consent (Art. 6(1)(a) GDPR), which Google obtains through its own consent mechanisms. You may withdraw consent or opt out of personalised advertising at any time:

• Google Ads Settings
• aboutads.info (Digital Advertising Alliance)
• youronlinechoices.eu (European Interactive Digital Advertising Alliance)

For more information on how Google uses data, see: How Google uses data when you use our partners' sites or apps.

Our hosting provider, Vercel Inc., automatically collects standard server log data including IP address, browser type, pages visited, time and date, and referring URLs. This data is processed by Vercel for operational and security purposes under their own privacy policy. Data may be transferred to the United States under standard contractual clauses (Art. 46 GDPR).

Where any personal data is processed through the Site (e.g., via third-party services), the legal bases are:

• Consent (Art. 6(1)(a) GDPR) — for advertising cookies via Google AdSense.
• Legitimate interests (Art. 6(1)(f) GDPR) — for server log data processed by Vercel for security and operational purposes.

If you are located in the European Economic Area, you have the following rights under the GDPR:

• Right of access — request a copy of personal data held about you.
• Right to rectification — request correction of inaccurate data.
• Right to erasure — request deletion of your personal data ("right to be forgotten").
• Right to restriction — request restriction of processing in certain circumstances.
• Right to object — object to processing based on legitimate interests.
• Right to withdraw consent — withdraw consent at any time without affecting prior processing.
• Right to lodge a complaint — with the Spanish data protection authority (AEPD) or the supervisory authority in your country of residence.

To exercise any of these rights, contact us at: contact@electrocalc.dev

We do not store personal data on our own servers. Preferences stored in your browser via localStorage remain until you clear your browser data. For data processed by third parties (Google, Vercel), please refer to their respective privacy policies.

The Site does not knowingly collect data from or direct marketing to children under 14 years of age (as required under Spanish law). If you believe a child has provided personal data, please contact us.

We may update this Privacy Policy from time to time. Material changes will be posted on this page with an updated date. Continued use of the Site after changes constitutes acceptance of the revised policy.

For any questions about this Privacy Policy or to exercise your data protection rights, contact:

Email: contact@electrocalc.dev