Zendesk Support offers Free Trial, but OTRS does not.
OTRS is designed for Large Enterprises, Medium Business and Small Business.
Zendesk Support is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Zendesk Support begins at $19/user/month when yearly, while pricing details for OTRS are unavailable.
Some top alternatives to OTRS includes Zendesk Support, Zoho Desk, Tidio Helpdesk, Freshservice, ManageEngine ServiceDesk Plus, Jira Service Desk, Freshdesk, HelpDesk, SysAid, osTicket, Jitbit Helpdesk, ReadyDesk, HelpdeskEddy, HESK, BoldDesk and ServiceNow Customer Service Management.
Some top alternatives to Zendesk Support includes Zoho Desk, Tidio Helpdesk, Deskero, Support Hub, HelpDesk, Desky, Help Scout, Salesforce Service Cloud, ReadyDesk, Sitehelpdesk, HESK and BoldDesk.