Support
Write to hello@smoltech.io. Airwaves is made by one person, who reads every message and usually replies within a few days.
The quickest way to report a problem is from the app: open the Airwaves menu, choose About Airwaves…, then Report a Problem…. It prepares an email with your app version and macOS version. Nothing is sent until you send it.
See also the privacy policy.