Yes, both Harvest and Cayzu Help Desk offer a Free Trial.
Harvest is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Cayzu Help Desk is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Harvest Starts at $10.80/User/Month when Billed Yearly whereas for Cayzu Help Desk Starts at $4/User/Month when Billed Yearly.
Some top alternatives to Harvest includes clockodo, Timesheets.com, TrackingTime, Clockify, TimeTrack, Time Track Bill, Timesheet, Hyperlogs, Timet and Time Tracker by eBillity.
Some top alternatives to Cayzu Help Desk includes Zendesk Support, Zoho Desk, Tidio Helpdesk, Freshservice, Freshdesk, LiveAgent, HelpDesk, SysAid, Jitbit Helpdesk, Desky, EngageBay Helpdesk System, ReadyDesk, HelpdeskEddy, Spiceworks Help Desk, LabiDesk and AzureDesk.