Yes, both Yazira and RationalPlan offer a Free Trial.
Yazira is designed for Large Enterprises, Medium Business and Small Business.
RationalPlan is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Yazira Starts at $9/User/Month whereas for RationalPlan Starts at $4/User/Month when Billed Yearly.
Some top alternatives to Yazira includes Todoist, Wrike, Smartsheet, TeamGantt, Teamwork, ProjectManager.com, nTask, RationalPlan, Today, Teamly, ClickUp, Height and Canvasrs.
Some top alternatives to RationalPlan includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Microsoft PPM, Wrike, monday.com, Teamwork, ProjectManager.com, Microsoft Project, Projectworks, Trackboard, TaskBranch, ProgressBoard, Quick Base and Project Insight.