Matt, I hate to say this, but we were never able to convince our ministry leaders of the change to Rocket.Chat. We helped fund the Rocket.Chat integration into Rock so have had it for awhile, but the push back was always the requirement to install another app. Most of our groups have used group SMS with some using GroupMe or some other tool. We launched a new church app a while back and are about to release a group messaging feature within the app. That is the only way we found to move leadership toward support of a tool, since it is part of the app we already push. Sorry to not have ideas to convince them, but wanted to be honest.