The “official’ Ring app is just called “official” as it’s developer is a verified developer, Ring does not support anything outside their own (Amazon’s) ecosystem.
I think Athom’s advice to install the community app is valid advice, but hey, who am I 
All I can tell you it supports more devices, the source code is for everybody available to look at, and there’s a nice topic where the app is described and support is given:
(The only thing is, my version is not available on Homey Cloud as I’m not a verified developer)
