Yes, both Pivotal Tracker and Microsoft Project offer a Free Trial.
Pivotal Tracker is designed for Large Enterprises, Medium Business and Small Business.
Microsoft Project is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Pivotal Tracker Starts at $6.50/User/Month whereas for Microsoft Project Starts at $10/User/Month.
Some top alternatives to Pivotal Tracker includes Wrike, Smartsheet, TeamGantt, Teamwork, ProjectManager.com, Microsoft Project, Backlog, Trackboard, Projectsly by 500apps, Height and Project Insight.
Some top alternatives to Microsoft Project includes Basecamp, Microsoft PPM, Trello, Wrike, Smartsheet, Zoho Projects, monday.com, Asana, ProjectManager.com, Worksuite, Projectworks, RationalPlan and Resource Management by Smartsheet.