Yes, both Yazira and Smartsheet offer a Free Trial.
Yazira is designed for Large Enterprises, Medium Business and Small Business.
Smartsheet is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Yazira Starts at $9/User/Month whereas for Smartsheet Starts at $9/month when 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 Smartsheet includes Quickbase , ClickUp, Zoho Projects, Jira, Microsoft PPM, Trello, TeamGantt, monday.com, Asana, Teamwork, ProjectManager.com, Microsoft Project and Airtable.