Yes, both SpecFuse and Kaiten offer a Free Trial.
SpecFuse is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Kaiten is designed for Medium Business and Small Business.
Pricing for SpecFuse Starts at $5/Month when Billed Yearly whereas for Kaiten Starts at $7/User/Month.
Some top alternatives to SpecFuse includes Quickbase , Smartsheet, ClickUp, Zoho Projects, ProductPlan, Next Please, Microsoft PPM, Wrike, ManagePro, Teamwork, ProjectManager.com, Microsoft Project, VisionProject, Changepoint PPM, Plan and Quick Base.
Some top alternatives to Kaiten includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Jira, KANBANSI, Kanboard, SwiftKanban, Kanbanize, Kendo Manager, Kanban Tool, Kanban Zone, KanbanFlow and Kanban One.