Privacy
What STEVKA does with your data
Last changed: 11 October 2026 · applies to stevka.org and the STEVKA apps
In short
- There is no account, no sign-in and no advertising.
- STEVKA does not track you: no analytics, no advertising identifiers, no cookies set by us.
- What you do in the app (settings, favourites, tours, sightings, your observing list) is kept on your own device, in the browser's or the app's local storage. It is not sent to us.
Your location
STEVKA asks for your location only when a feature needs it: the Sky over you, tonight's passes and eclipses, the weather and clouds over your place, the hills on your horizon, "what lives near you". You can refuse; those features then ask you to pick a place or simply stay off.
- Your position is used on your device to work out the sky, and is not sent to us.
- To show live data for your place, the app sends coordinates to the service that provides it: the weather forecast (MET Norway), satellite cloud pictures (EUMETSAT, NASA), elevation tiles for the horizon (Terrain Tiles on AWS Open Data), aurora and space weather (NOAA). For "what lives near you" the position is rounded to about 10 km before it is sent to GBIF.
- These services receive the request directly from your device, as any website you visit does, and handle it under their own policies.
Camera, motion sensors and photographs
- The camera is used only for the camera view of the Sky and of an atom, and when you choose to take a photograph of the night sky to have its stars named. The picture is processed on your device and is not uploaded.
- The compass and motion sensors are read on your device to turn the view with your phone.
Live data the app asks for
Much of STEVKA is live. To show it, the app requests public data from the organisations that publish it, among them NASA, NOAA, the U.S. Geological Survey, EUMETSAT, the E.U. Copernicus Marine Service, MET Norway, CelesTrak, GBIF, Wikipedia and Wikidata, the Open Tree of Life, UniProt and the AlphaFold database, the Paleobiology Database and ALeRCE. Such a request carries what every web request carries: your internet address and your browser's description. Nothing that identifies you personally is added by STEVKA.
This website
The server that hosts stevka.org keeps ordinary access logs (internet address, time, the file asked for, the browser's description) to keep the site running and safe. They are not used to follow individual visitors and are not shared.
Notifications
If you turn on reminders (a station pass, an eclipse), they are scheduled on your device. Nothing is sent to a server to deliver them.
Children
STEVKA is made for learning and collects no personal data from anyone. One section of the human body view is marked 18+ and is off unless it is switched on in Settings.
Questions
Write to nikolastojanovic387@gmail.com.