Built to know your sky—not you.
No account, no advertising, and no cross-app tracking.
Location
If you grant permission, Astral Forecast uses your location while you use the app. Coordinates are rounded to approximately 0.1 degrees before requesting local cloud conditions from Apple Weather. NOAA's global aurora forecast is matched to that rounded location on your device. Saved locations remain on your device.
Data sources
The app requests weather data from Apple Weather, space-weather data from NOAA SWPC, and ISS orbital elements from CelesTrak. Opening Live Aurora Cams or another source link leaves the app and is governed by that provider's privacy policy. Astral Forecast does not embed or restream webcam footage.
Diagnostics and analytics
Apple may provide crash, hang, and usage diagnostics through MetricKit and App Store Connect when you choose to share analytics with developers in iOS Settings. Anonymous in-app event counts remain in app-only storage and are not transmitted by Astral Forecast.
Notifications and device storage
Alert preferences, notification history, saved places, and recent forecast caches are stored locally on your device. You can disable notifications in iOS Settings and remove local app data by deleting the app.
Forecast limitation
Sky forecasts are probabilistic and can be delayed, incomplete, or incorrect. Astral Forecast is not an emergency or life-safety service and never guarantees visibility or safe travel conditions.