Astrk

Privacy Policy

Last updated 14 November 2026

This policy explains how 3 CAT TECHNOLOGIES (“3 Cat Technologies”, “we”, “us”) handles personal data in the Astrk app and on this website. We process personal data in line with Malaysia’s Personal Data Protection Act 2010.

Who we are

3 CAT TECHNOLOGIES, Malaysia. Contact: hello@3cat.dev.

This website

This website does not use advertising or analytics cookies and has no user accounts. Your language choice is stored in your browser only. If you email us, we use what you send only to reply to you.

The app

Astrk works out the sky from where you are. To do that, it uses:

  • Location (only with your permission), to calculate the sky, rise and set times and conditions for where you are. Your coordinates are sent to the weather, elevation and map providers below with each request, and are not linked to your identity.
  • Your account, if you sign in with Apple or Google: your name, email address and an account ID, handled by Google Firebase Authentication so you stay signed in.
  • Camera (only with your permission), to draw the sun, moon and Milky Way paths over the live view. Nothing is recorded, saved or uploaded.
  • Motion sensors, to know which way your phone is pointing. This stays on your device.
  • Local network (only with your permission), to talk to your telescope mount on the same Wi-Fi. Mount commands stay on your local network.

Saved places, targets and settings stay on your device. The app has no advertising and no analytics or tracking SDKs. We do not sell personal data.

Service providers

The app requests data from Open-Meteo (weather and elevation), 7Timer! (astronomical seeing), NOAA SWPC (aurora), CelesTrak (satellite orbits), OpenStreetMap and Nominatim (map tiles and place names) and CDS Strasbourg (survey photos). Sign-in is handled by Google Firebase Authentication, with Apple or Google as the identity provider you choose. They receive the technical data needed to answer each request, such as your IP address and, for weather and maps, the coordinates being looked up. Apple and Google distribute the app under their own privacy terms.

Retention

Your account details are kept in Firebase Authentication until you delete your account; other app data stays on your device. Enquiry emails are kept for as long as needed to deal with them and for our business records.

Your rights

You can ask to access, correct or delete your personal data and account, or withdraw your consent, by emailing hello@3cat.dev. You can turn off location, camera and local network access at any time in your device settings.

Changes

If this policy changes, we will update this page and the date above.