Comment to Rocketchat
So the one here at UNA connect, even thought at Rokect Chat it only gives you the Dolphin option. It will connect using that option. However, It doesn't let users login when they connect from the RC mobile app, neither will it pull down the users profile pictures.
In the oAuth where you see the Dolphin, scroll down and you should see the UNA section.
Hmmm...it begging with Dolphin and end with Wordpress. I can't see UNA on the list!