Get a User's Available Devices does not show iPhone

[Kimfucious]

Hi there,

I'm doing some testing using a free account, trying to utilize Get a User's Available Devices in an app.

In both the app and here (the try it page), I can see the Mac where I have installed the Spotify macOS app; however, I cannot see the iPhone where I've installed the iOS app.

The iPhone is an XR model, running iOS 15 beta.

I've scoured the web looking for a definitive answer as to why this might be the case, such as "you need a premium account to do this," but I've found nothing conclusive.

I'm hoping that by asking here, I can get a definitive answer and potential ideas for getting the iPhone recognized.

Thanks!