I know Ring beta testing program is invite-only at the moment,
I definitely think your beta tester should be more representative of your actual customers because I’m not sure if you are getting enough useful feedback on your product so you can make any necessary adjustments before your app launches that targets real users.
Beta testers hold all of the valuable information you need when it comes to improving your product and to make sure you don’t disabled features that everybody relays on especially after the new iOS update that disabled the pinch to zoom on live view.