Yes, both Zoho Desk and UseDesk offer a Free Trial.
Zoho Desk is designed for Large Enterprises, Medium Business and Small Business.
UseDesk is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Zoho Desk Starts at $7/user/month when yearly whereas for UseDesk Starts at $45/Month.
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.
Some top alternatives to UseDesk includes Zendesk Support, Zoho Desk, Tidio Helpdesk, Freshservice, Freshdesk, Deskero, LiveAgent, HelpDesk, SysAid, Jitbit Helpdesk, Help Scout, CRMdesk, LabiDesk, DeskXpand, BoldDesk and Little SaaS Communication.