Yes, both Thrive and ClickUp offer a Free Trial.
Thrive is designed for Freelancers, Medium Business and Small Business.
ClickUp is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Thrive Starts at $15.80/User/Month when Billed Yearly whereas for ClickUp Starts at $7/User/Month when yearly.
Some top alternatives to Thrive includes Quickbase , Smartsheet, ClickUp, Basecamp, Trello, Wrike, TeamGantt, ProofHub, Zoho Projects, monday.com, Asana, ProjectManager.com, Quick Base, Citrix Podio and Adobe Workfront.
Some top alternatives to ClickUp includes Basecamp, Trello, TeamGantt, Asana, Teamwork, ProjectManager.com, ProWorkflow, nTask, Todoist and Height.