Yes, both Slenke and Smartsheet offer a Free Trial.
Slenke is designed for Large Enterprises, Medium Business and Small Business.
Smartsheet is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Slenke Starts at $15/User/Month when Billed Yearly whereas for Smartsheet Starts at $7/User/Month when Billed Yearly.
Some top alternatives to Slenke includes Wrike, Smartsheet, TeamGantt, monday.com, Teamwork, ProjectManager.com, Microsoft Project, ProWorkflow, Projectworks, Trackboard and Project Insight.
Some top alternatives to Smartsheet includes Microsoft PPM, Trello, TeamGantt, monday.com, Asana, Teamwork, ProjectManager.com and Microsoft Project.