Yes, both Dixa and Zendesk Support offer a Free Trial.
Dixa is designed for Large Enterprises, Medium Business and Small Business.
Zendesk Support is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Dixa Starts at $39/User/Month whereas for Zendesk Support Starts at $19/user/month when yearly.
Some top alternatives to Dixa includes Zoho Desk, Zendesk Support, ManageEngine ServiceDesk Plus, Zendesk Talk, Freshservice, Freshdesk, ClickDesk, LiveAgent, HelpDesk, SysAid, Jitbit Helpdesk, Desky, Help Scout, HelpdeskEddy, LabiDesk and Zendesk Chat.
Some top alternatives to Zendesk Support includes Zoho Desk, ManageEngine ServiceDesk Plus, Deskero, Support Hub, HelpDesk, Desky, Help Scout, Salesforce Service Cloud, ReadyDesk, Sitehelpdesk, HESK and BoldDesk.