Who Is Responsible
Zorja is made by Tomas Minarik. Questions about privacy: hello@tomasminarik.com.
Your Location
To check the sky where you are, Zorja needs a location: either your phone’s, if you allow it, or a place you choose.
- Your phone’s location is read once, when a forecast needs it. Zorja doesn’t track you or follow where you go.
- Before anything leaves your phone, the location is rounded to about 1 km. Zorja never sends your exact position.
- The rounded location goes to Zorja’s server, which uses it to get the weather from the Norwegian Meteorological Institute (MET Norway) and to work out darkness and aurora activity for that spot.
- The server doesn’t save your location with anything that identifies you, and doesn’t write it to any logs. The weather for that rounded spot is kept for up to 6 hours, so the next request nearby doesn’t have to ask MET Norway again.
You can turn location off at any time in your iPhone’s Settings and choose a place instead.
What Stays On Your Phone
Your saved places, the place you have selected and the last forecast are stored only on your phone. They stay until you remove a place or delete the app. The eye-adjustment timer stores nothing.
This Website
- Cloudflare hosts zorja.app. Like any web host, it sees your IP address and basic request details (time, page requested, result), under Cloudflare’s privacy policy.
- The site sets no cookies, stores nothing in your browser, has no analytics and loads nothing from other companies. Its fonts are served from zorja.app itself.
- If you check tonight’s sky on the site, the place you pick, or your browser’s location if you allow it, is rounded to about 1 km and sent from your browser straight to Zorja’s server. It’s handled there exactly as described above.
Who Else Is Involved
- Vercel runs Zorja’s server, in Frankfurt. Like any web host, it sees your IP address and basic request details (time, address requested, result). Vercel keeps those request details for 1 hour, and may keep network data longer to protect its service against abuse (Vercel’s privacy notice). It doesn’t keep the contents of requests.
- Upstash stores the server’s shared cache, in Frankfurt: weather for rounded spots (up to 6 hours) and aurora data that contains nothing about you.
- MET Norway receives the rounded location from Zorja’s server, never from your phone, so it doesn’t see your IP address.
- NOAA, the US space weather agency, provides aurora data. It receives nothing about you.
- Apple provides place search and the map. What you type into search and the map you view go to Apple under Apple’s privacy policy. If you add a viewing time to your calendar, Apple’s own calendar sheet handles it, and Zorja keeps nothing.
What Zorja Doesn’t Do
No account, no ads, no analytics, no tracking across apps or websites, and no selling or sharing of data. Zorja contains no third-party analytics, advertising or crash-reporting code.
Your Rights
Zorja keeps nothing that identifies you, so there is nothing to look up, export or delete on the server. To remove everything on your phone, delete the app. If you’re in the EU or UK, you have rights under the GDPR, including the right to complain to your data protection authority. Write to the address above with any question.
Children
Zorja is suitable for all ages and collects no more from children than from anyone else, which is nothing that identifies them.
Changes
If this policy changes, the new version will be published at the same address, with its date.