Privacy Policy

This service is operated for educational purposes. For any privacy-related inquiries, you can contact us through the contact form available on the site.

Data processing is based on: (1) legitimate interest for anonymous analytics that improve the service; (2) implicit consent for the functional location preference cookie; (3) explicit consent (Article 6(1)(a) GDPR) for push notifications, which are entirely optional and require deliberate browser permission grant.

We use two functional cookies: one remembers your preferred location (1 year) and the other keeps the air-quality color theme between pages (1 day). Your browser also keeps some data on your device only: pinned locations, alert history, dismissed prompts, a visit counter that decides when to show tips, your visitor-survey answer if you gave one, and the dates of your first and latest visit (see Analytics). None of it identifies you, and you can delete it from your browser settings at any time.

When you click "Use my location", your browser's geolocation API is used to determine the nearest supported location. This data is processed entirely on your device and is never transmitted to our servers.

If you enable notifications, we store a technical push endpoint identifier, your selected locations, and your language preference. This is not linked to personal data and expires automatically after 90 days of inactivity. You can disable notifications at any time from the notification settings within the app or from your browser settings.

We use Plausible Analytics, a privacy-focused service that does not use cookies or collect personal data. We track anonymous page views and feature usage to improve the service. No personal information, browsing history, or tracking pixels are used. To see whether people come back, once a day we send Plausible only how long it has been since your previous visit (for example "2–7 days") and whether you use the installed app or a browser, never the dates or any identifier. This record resets 13 months after your first visit. If you answered the visitor survey, your answer is attached to these anonymous events.

We fetch weather and air quality data from third-party APIs. These services may have their own privacy policies:

• • Open-Meteo - Primary source for air quality and weather data (includes Copernicus CAMS data)
• • AEMET - Spanish Meteorological Agency forecasts and warnings
• • University of Athens (SKIRON) - Dust forecast maps

Under GDPR, you have the right to access, rectify, erase, and port your data, as well as to object to or limit its processing. Since this service does not collect identifiable personal data, these rights are primarily exercised over cookies and data stored in your browser (deletable from your browser settings) and push subscriptions (can be disabled at any time). For complaints, you may contact the Spanish Data Protection Agency (aepd.es).

If you have questions about this privacy policy, please use our contact form.