Yes, both Pivotal Tracker and Aha! offer a Free Trial.
Pivotal Tracker is designed for Large Enterprises, Medium Business and Small Business.
Aha! is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Pivotal Tracker Starts at $6.50/User/Month whereas for Aha! Starts at $59/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 Aha! includes Roadmunk, ProductPlan, Jira, productboard, Productroad, Backlogs, ProductFlare, Next Please, Teamwork and Height.