Yes, both Pivotal Tracker and CardBoard offer a Free Trial.
Pivotal Tracker is designed for Large Enterprises, Medium Business and Small Business.
CardBoard is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Pivotal Tracker Starts at $6.50/User/Month whereas for CardBoard Starts at $8.50/User/Month when Billed Yearly.
Some top alternatives to Pivotal Tracker includes Smartsheet, Miro, Process Street, Wrike, Notion, Jira, TeamGantt, Teamwork, ProjectManager.com, Microsoft Project, Backlog, Trackboard, Quick Base, ClickUp, Projectsly by 500apps, Height and Project Insight.
Some top alternatives to CardBoard includes Collaboard, Miro, FigJam, StoriesOnBoard, SmartDraw, Gliffy, DrakonHub, FlowMapp, diagrams.net, FeatureMap, Board and HackerDraw.