Yes, both Zoho Desk and Tidio Helpdesk offer a Free Trial.
Zoho Desk is designed for Large Enterprises, Medium Business and Small Business.
Tidio Helpdesk is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Zoho Desk Starts at $14/User/Month when Billed Yearly whereas for Tidio Helpdesk Starts at $24/month when 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 Tidio Helpdesk includes and Zendesk Support.