Yes, both Clockwork and Float offer a Free Trial.
Clockwork is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Float is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for Clockwork Starts at $99/Month when Billed Yearly whereas for Float Starts at $6.
Some top alternatives to Clockwork includes Float, CashStory, Finmap, Airbank, Qualified, Workvivo, Finvisage, CashAnalytics, Dryrun, CashFlowMapper, Cenario and flowpilot.
Some top alternatives to Float includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Microsoft PPM, Wrike, Rutamsoft Project Management, Teamwork, ProjectManager.com, Microsoft Project, LiquidPlanner, RationalPlan, Plan, Toggl Plan, Quick Base and Resource Management by Smartsheet.