PRIVACY & DATA MINIMISATION
Your trip is not a public travel diary.
CO₂.TRAVEL is local-first. You decide whether a trip stays on your device or is voluntarily synced to your account.
Using CO₂.TRAVEL without cloud sync
Trip titles, exact start and end dates, destinations, legs and calculation results are stored in your browser. CO₂.TRAVEL does not send this trip content to its backend. For aggregate product statistics, it sends only a random trip ID and creation time — without trip content, a user account or a device identifier.
Optional cloud sync
If you activate cloud sync with your email address, the title, travel month and year, party size, trip duration, legs and calculation inputs are linked to your protected Supabase account. The exact start and end day remains local and is not uploaded. Month, year, nights and travel days allow analysis of seasonality and typical trip duration without exact absence dates. Access controls prevent other users from reading your synced trips. Authorised operators with database access can technically access synced content.
Distance calculation with Mapbox
For road routes, the coordinates of selected places and stops are sent to the Mapbox Directions API. Mapbox also processes technically necessary connection data such as your IP address under its own privacy terms.
Service providers
CO₂.TRAVEL does not store your IP address or derive a location from it. The website is delivered through Hostinger, accounts and optional cloud sync use Supabase, and road distances use Mapbox. These providers receive the IP address as part of the network connection and may process necessary log data under their own terms. CO₂.TRAVEL does not use advertising trackers or sell trip data.
Storage and deletion
Local trips remain until you delete them in the app or clear this site's browser data. Synced trips remain until you delete them in the app. Superseded calculation runs are removed after no more than 90 days; the current calculation remains with the trip.
Your rights and contact
You may request access, correction or deletion of stored personal data. The responsible operator's name and contact address, as well as the service providers' processing locations, must be added here before this page is published.
Technical status: 25 October 2026