Ski has no accounts. There is no sign-in, and nothing in Ski is tied to a name or an email.

Ski uses location only on this phone, to show which resorts are near you. iPhone asks while the app is in use. Android uses approximate location.

The position stays on the phone. The server receives a region, and this phone looks up the travel time. A home region picked in Settings stays on the phone too.

Ski stores data about mountains: snow, lifts, weather, avalanche bulletins and travel times between places. There is no person in that data, so a record of where someone has been cannot exist.

The host of the service sees the IP address and the app or browser identifier of each request, and keeps them for one hour. Ski adds nothing to those logs and does not export them.

The map loads tiles from swisstopo, and a webcam still loads from Windy, directly from this device. Those sites see the IP address and the app or browser identifier. Ski keeps no key on the device and does not store the pictures.

Ski includes no analytics SDK and sets no tracking cookie.

Forecasts and short-lived temperature and wind readings are deleted after 14 days. Lift reports are deleted after 6 days. A ranking saved on this device is deleted after 5 days. The daily snow record is kept.