Yes, both Nat and ClickUp offer a Free Trial.
Nat is designed for Large Enterprises, Medium Business and Small Business.
ClickUp is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Nat Starts at $12/Month whereas for ClickUp Starts at $7/User/Month when yearly.
Some top alternatives to Nat includes Salesforce Sales Cloud, Pipedrive, Thryv, Vendasta, ClickUp, Zoho CRM, Freshsales, Gro CRM, CRM.me, AllProWebTools, FreeCRM, OnContact CRM, Easy Simple CRM, SalesPro CRM, Prosoftly, Miss CRM and monday sales CRM by monday.com.
Some top alternatives to ClickUp includes Basecamp, Trello, TeamGantt, Asana, Teamwork, ProjectManager.com, ProWorkflow, nTask, Todoist and Height.