Yes, both Deskero and Zendesk Support offer a Free Trial.
Deskero is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Zendesk Support is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Deskero Starts at $9/User/Month when Billed Yearly whereas for Zendesk Support Starts at $19/user/month when yearly.
Some top alternatives to Deskero includes Zendesk Support, Tidio Helpdesk, Freshservice, Freshdesk, Zoho Desk, Teamwork Desk, SeamlessDesk, HelpDesk, SysAid, Jitbit Helpdesk, Desky, ReadyDesk, Trakdesk, LabiDesk, DeskXpand and BoldDesk.
Some top alternatives to Zendesk Support includes Tidio Helpdesk, Deskero, Support Hub, HelpDesk, Desky, Help Scout, Salesforce Service Cloud, ReadyDesk, Sitehelpdesk, HESK and BoldDesk.