Yes, both Rexpad and ClickUp offer a Free Trial.
Rexpad is designed for Individuals, Freelancers, Medium Business and Small Business.
ClickUp is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Rexpad Starts at $4/Month whereas for ClickUp Starts at $7/User/Month when yearly.
Some top alternatives to Rexpad includes Collaboard, Infolio, CollaborateCloud, Airtable, ClickUp, Collabee, CoLab, Papermind, Collabtools, Jamboard and Witeboard.
Some top alternatives to ClickUp includes Basecamp, Trello, TeamGantt, Asana, Teamwork, ProjectManager.com, ProWorkflow, nTask, Todoist and Height.