Yes, both Flow and Microsoft Project offer a Free Trial.
Flow is designed for Large Enterprises, Medium Business and Small Business.
Microsoft Project is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Flow Starts at $6/User/Month when Billed Yearly whereas for Microsoft Project Starts at $10/User/Month.
Some top alternatives to Flow includes Smartsheet, Miro, Process Street, Wrike, Notion, TeamGantt, Teamwork, ProjectManager.com, Microsoft Project, ProWorkflow, Trackboard, TaskBranch, Quick Base, ClickUp, Height, Task Flow and Project Insight.
Some top alternatives to Microsoft Project includes Smartsheet, Miro, Process Street, Wrike, Notion, Freshbooks, Jira, Basecamp, Microsoft PPM, Trello, Zoho Projects, monday.com, Asana, ProjectManager.com, Worksuite, Projectworks, RationalPlan, Quick Base, ClickUp, Resource Guru and Resource Management by Smartsheet.