Hey people! Some background - we created RocketChatLauncher (https://rocketchatlauncher.com) to let anyone get their own team chat up and running without having to setup a server and software.
It only takes a couple of minutes to sign up and start on-boarding your team - our cloud infrastructure handles all the hosting headaches and comes with some great features; like SSL and a custom pre-loaded email address @ rocketchatlauncher.com (your account starts sending invites to team members, notifications and more by email without any configuration, or you can choose to use your own SMTP settings.)
Our platform is a breeze to use and we've got some great added functionality rolling out in coming weeks :)
For anyone unfamiliar with it, Rocket Chat (http://rocket.chat) is the most popular Open Source chat/messaging software which normally requires your own server etc...
StartupTile