Yes, both Zoho BugTracker and Zoho Desk offer a Free Trial.
Zoho BugTracker is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Zoho Desk is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Zoho Desk begins at $7/user/month when yearly, while pricing details for Zoho BugTracker are unavailable.
Some top alternatives to Zoho BugTracker includes Jira, Zoho Projects, FogBugz, The Bug Squasher, Sentry, ReportBugz, zipBoard, BugHost, Bug-Track.com and Disbug.
Some top alternatives to Zoho Desk includes Zendesk Support, Tidio Helpdesk, ManageEngine ServiceDesk Plus, Jira Service Desk, HelpDesk, SysAid, Desky, ReadyDesk, Sitehelpdesk, Trakdesk, HESK and BoldDesk.