Yes, both Mission-X and ClickUp offer a Free Trial.
Mission-X is designed for Large Enterprises, Medium Business and Small Business.
ClickUp is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Mission-X Starts at $7.99 whereas for ClickUp Starts at $7/User/Month when yearly.
Some top alternatives to Mission-X includes monday.com, Quickbase , Smartsheet, ClickUp, Wrike, Teamwork, ProjectManager.com, Microsoft Project, ApuTime, VisionProject, Projectworks, Quick Base, Mission Control, Height and Project Insight.
Some top alternatives to ClickUp includes Basecamp, Trello, TeamGantt, Asana, Teamwork, ProjectManager.com, ProWorkflow, nTask, Todoist and Height.