Privacy

Last updated: 2 September 2026.

What the app does not do

• No account, no sign-up, no e-mail asked.
• No location: you pick your spots, the app never asks for your position.
• No ads, no data resale, no third-party trackers.

What the app does

Forecasts. To show swell, wind and weather, the app requests a spot's forecast from our gateway (Cloudflare Workers), which queries Open-Meteo. The request contains the spot's identifier, not your location or identity. Cloudflare's technical logs (IP address, timestamp) are kept a few days at most, for security.

Usage statistics. None. This version of the app contains no analytics and no trackers: nothing leaves your phone except the forecast request described above. If we ever add usage measurement, it will be anonymous, switchable off in one tap in Settings, and announced here.

This site. It uses no cookies and no audience measurement.

Your rights

Because the data is anonymous, we cannot link it to you. Questions: bonjour@estran.app.

Data sources

Tides: computed by Estran from Shom / REFMAR observations (Licence Ouverte 2.0). Swell and weather: Open-Meteo (Météo-France, ECMWF, Copernicus).