Yes, both Cirkus and Smartsheet offer a Free Trial.
Cirkus is designed for Individuals, Freelancers, Medium Business and Small Business.
Smartsheet is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Cirkus Starts at $30/User/Month when Billed Yearly whereas for Smartsheet Starts at $9/month when yearly.
Some top alternatives to Cirkus includes Todoist, Wrike, Smartsheet, TeamGantt, Asana, Teamwork, ProjectManager.com, GanttPRO, nTask, Today, MeisterTask, Teamly, TaskOPad and ClickUp.
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.