Yes, both Gantter and Wrike offer a Free Trial.
Gantter is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Wrike is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Gantter Starts at $5/User/Month whereas for Wrike Starts at $0/user/month when monthly.
Some top alternatives to Gantter includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Microsoft PPM, Wrike, TeamGantt, monday.com, Teamwork, ProjectManager.com, Microsoft Project, Workep, Worksuite, Plan, Quick Base and Ravetree.
Some top alternatives to Wrike includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Jira, Basecamp, Trello, TeamGantt, monday.com, Asana, Teamwork, ProjectManager.com, Microsoft Project and ProWorkflow.