Yes, both Stackin and Time Analytics offer a Free Trial.
Stackin is designed for Large Enterprises, Medium Business and Small Business.
Time Analytics is designed for Medium Business and Small Business.
Pricing for Stackin Starts at $16.50/Month when Billed Yearly whereas for Time Analytics Starts at $4.29/Month when Billed Yearly.
Some top alternatives to Stackin includes Time Analytics, Upside, Hatica, Okay, Scope, Swarmia, Haystack, Waydev, AnalyticsVerse and DevDynamics.
Some top alternatives to Time Analytics includes Smartsheet, Everhour, Hubstaff, Timesheets.com, Clockify, TimeTrack, Timebase, Time Track Bill, Timesheet, Billable and AtTrack.