Privacy Policy

AirWSJT-X — Effective October 12, 2026

Overview

AirWSJT-X is a free, open-source amateur radio application. We do not collect, store, or transmit any personal data. The app runs entirely on your device.

Data the App Accesses

AirWSJT-X makes network requests solely for its core functionality:

• Aircraft position data — fetched from OpenSky Network or ADS-B Exchange using credentials you provide. These services have their own privacy policies.
• Station database — a shared list of amateur radio station grid squares fetched from ad7np.us. This contains only callsigns and grid locators voluntarily published by radio operators.
• Callsign lookups — queries to callook.info for publicly available FCC license data.

Data We Do Not Collect

• No analytics or telemetry
• No crash reporting sent to us
• No advertising or tracking
• No personal information collection
• No location data sent to any server
• No account registration required

Local Storage

The app stores your settings (station callsign, grid locator, aircraft data source credentials) locally on your device. On mobile, credentials are stored in the OS secure credential store (Keychain on iOS/macOS). This data never leaves your device except as part of the network requests described above.

Third-Party Services

When you configure aircraft data source credentials, those credentials are sent directly to the respective service (OpenSky Network or ADS-B Exchange) to authenticate API requests. We do not act as an intermediary.

Open Source

AirWSJT-X source code is available on GitHub. You can verify exactly what data the app accesses.

Contact

Questions about this policy? Contact us at ad7np.us/Support/AirWSJT-X.

Changes

This policy may be updated as the app evolves. Changes will be posted at this URL.