Yes, both Jell and Pivotal Tracker offer a Free Trial.
Jell is designed for Large Enterprises, Medium Business and Small Business.
Pivotal Tracker is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Jell Starts at $4/User/Month when Billed Yearly whereas for Pivotal Tracker Starts at $6.50/User/Month.
Some top alternatives to Jell includes Synergita, Ally, Weekdone, OKRs.app, Ahundred, Steer, Workboard, SugarOKR, Peoplebox, JOP and SmartOKR.
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.