Yes, both Pivotal Tracker and Userdoc offer a Free Trial.
Pivotal Tracker is designed for Large Enterprises, Medium Business and Small Business.
Userdoc is designed for and undefined.
The starting price of Pivotal Tracker begins at $6.50/User/Month, while pricing details for Userdoc are unavailable.
Some top alternatives to Pivotal Tracker includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Jira, Wrike, TeamGantt, Teamwork, ProjectManager.com, Microsoft Project, Backlog, Trackboard, Quick Base, Projectsly by 500apps, Height and Project Insight.
Some top alternatives to Userdoc includes and undefined.