This blog post will serve as my privacy policy.
I do not store any personal data, with the exception of grid squares for those who report location issues with Ham Finder. I will provide your location to the various APIs that I use to determine your location.
I do use a unique id for each phone to ensure that a token is unique to a given device. This is stored via a complex system of hashing, which will not allow me to identify any devices. That token is only stored on the local device, and is not sent anywhere.