Yes, both ClickUp and Chatter offer a Free Trial.
ClickUp is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Chatter is designed for Large Enterprises, Medium Business and Small Business.
The starting price of ClickUp begins at $7/User/Month when yearly, while pricing details for Chatter are unavailable.
Some top alternatives to ClickUp includes Basecamp, Trello, TeamGantt, Asana, Teamwork, ProjectManager.com, ProWorkflow, nTask, Todoist and Height.
Some top alternatives to Chatter includes mi.team, Yammer, Jamespot, Convo, talkspirit, Dialog, Speakap, SecOne, Brosix and Icebreaker time!.