Yes, both Rocket.Chat and Google Chat offer a Free Trial.
Rocket.Chat is designed for Large Enterprises, Medium Business and Small Business.
Google Chat is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Rocket.Chat Starts at $2/User/Month when Billed Yearly whereas for Google Chat Starts at $6/User/Month.
Some top alternatives to Rocket.Chat includes Slack, Glip, Google Chat, Zulip, IRCCloud, ChatWork, Dialog, CometChat, Teamwork Chat and Echo.
Some top alternatives to Google Chat includes Microsoft Teams, Slack, Glip, MeetSpace, Output Messenger, ChatWork, Trillian, Dialog, Office Chat and Teamwork Chat.