The FAQ says that the Stream app will work for Flex subscribers for "purchased and/or rented content and premium subscriptions" which sounds exclusive to me.
The beta version of the Roku Xfinity Stream app doesn't support customers that don't have a video subscription. I expect that other streaming boxes will have the same requirement.
As of last August, Apple TV wasn't supported with an Xfinity Stream app and AirPlay is not available on the iOS streaming app.
I've "taken one for the team" and subscribed to Flex and I'll let you know if my fortunes with the Roku app change.
The beta version of the Roku Xfinity Stream app doesn't support customers that don't have a video subscription. I expect that other streaming boxes will have the same requirement.
As of last August, Apple TV wasn't supported with an Xfinity Stream app and AirPlay is not available on the iOS streaming app.
I've "taken one for the team" and subscribed to Flex and I'll let you know if my fortunes with the Roku app change.