Yes, both Zoho Desk and Vision Helpdesk offer a Free Trial.
Zoho Desk is designed for Large Enterprises, Medium Business and Small Business.
Vision Helpdesk is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Zoho Desk Starts at $7/user/month when yearly whereas for Vision Helpdesk Starts at $12/User/Month when Billed Yearly.
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 Vision Helpdesk includes Zendesk Support, Zoho Desk, Tidio Helpdesk, Freshservice, Freshdesk, Kayako, Deskero, Teamwork Desk, LiveAgent, HelpDesk, SysAid, osTicket, Jitbit Helpdesk, eStreamDesk, BoldDesk and Scopedesk.
