Effective Date: 10 October 2025

Privacy Policy for SQM Toolbox

App Name: SQM Toolbox

Developer: GerSpatial

Overview

SQM Toolbox processes observatory coordinates, light pollution measurements, preferences, exports, astronomical calculations, and optional external scientific database uploads.

Information We Collect

  • Observatory coordinates for astronomical calculations.
  • Measurement data and associated metadata.
  • User preferences, graph configurations, and display preferences.
  • Export metadata such as instrument identification, data supplier information, observatory characteristics, and measurement parameters.
  • Automatically generated astronomical calculations, space weather data, Milky Way brightness, and airglow estimates.

Local Processing

  • All measurement processing and astronomical calculations occur locally on your Mac.
  • Your data is stored in local files and macOS user preferences.
  • No personal data is transmitted to GerSpatial servers for app functionality.

Data Export and Sharing

  • SkyGlow format files may include location and measurement metadata you configured.
  • Optional uploads to Globe at Night, Light Pollution Map, and Unihedron Database are initiated only by your explicit action.
  • Each external service has its own privacy policy and data handling practices.

Network Activity

  • Retrieving F10.7 and Kp indices from public government sources such as NOAA and ESA.
  • Optional data uploads when you explicitly choose to share data with scientific databases.
  • No usage analytics or telemetry collection.
  • CloudKit synchronisation may be used with SQM Mobile when both devices use the same iCloud account.

Data Security and Retention

  • Network connections use HTTPS when accessing external data sources.
  • API keys for external services are stored securely in macOS Keychain where possible.
  • Local data persists until you delete it or uninstall the app.
  • Exported files remain under your control.

Your Rights and Controls

  • Access stored preferences through app settings.
  • Modify or delete measurement data and preferences.
  • Export standard format files.
  • Choose whether and where to upload data.

Third-Party Services

  • NOAA Space Weather Prediction Center for solar flux and geomagnetic indices.
  • GFZ Helmholtz Centre for Geosciences for historical geomagnetic indices.
  • Optional data sharing services including Globe at Night, Light Pollution Map, and Unihedron Database.

Contact

If you have any questions or concerns, please contact the developer at: info@gerspatial.com