Yes, both Process Street and Flow offer a Free Trial.
Process Street is designed for Large Enterprises, Medium Business and Small Business.
Flow is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Flow begins at $6/User/Month when Billed Yearly, while pricing details for Process Street are unavailable.
Some top alternatives to Process Street includes GoodFlow, Asana, WorkflowMax, ProWorkflow, Orbisoft Task Manager, ClickUp, KiSSFLOW, ProcessMaker, ZapUp by 500apps and Flow.
Some top alternatives to Flow includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Wrike, TeamGantt, Teamwork, ProjectManager.com, Microsoft Project, ProWorkflow, Trackboard, TaskBranch, Quick Base, Height, Task Flow and Project Insight.