Yes, both Pivotal Tracker and Clockify offer a Free Trial.
Pivotal Tracker is designed for Large Enterprises, Medium Business and Small Business.
Clockify is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Pivotal Tracker Starts at $6.50/User/Month whereas for Clockify Starts at $3.99/User/Month when Billed Yearly.
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 Clockify includes TimeTracker App, Toggl Track, Harvest, My Hours, Hubstaff, Timesheets.com, TrackingTime, Tick, TimeTrack and TeamTime.