Other apps to stream from HDHR?

So, the HDHR app on Roku is essentially useless.

What other apps can stream directly from the HDHR flex Quatro? I've heard the Plex client can stream directly but I see no place to configure it to detect the HDHR. Do I need to be running Plex server and stream through the Media server? I've an LG TV and we know HDHR doesn't exist there.

Do I abandon the Roku and dump a ton of money into an Android device?

I refuse to join the Apple world and am not partial to Fire ecosystem.