Help and product information for Skywave.
Skywave is a complete amateur-radio and RF reference that runs entirely on your device. Every lookup and every calculation happens locally — so the whole shack works on a summit, in a basement, on a plane, or anywhere the signal drops. No account. No subscription. No cloud round-trips. Nothing you enter ever leaves your iPhone or iPad.
Does the app need an account or subscription?
No. It is a one-time-download app with no account, advertising, analytics, or in-app purchase.
Does it work offline?
Core features and bundled reference data work on-device without a developer-operated service.
Where is my information stored?
Your station choices, favorites, radio settings, practice state, and location preferences remain in the app's local storage.
How do I remove local data?
Use available delete or reset controls. Removing the app removes its local container, subject to backups you control through Apple.
What are the limits?
Verify frequencies, operating privileges, and local regulations before transmitting. The app does not transmit radio signals.
Email support@shadowfetch.com with the app name, device model, iOS version, and a concise description of the issue.