Yes, both Zendesk Support and Flip CX offer a Free Trial.
Zendesk Support is designed for Large Enterprises, Medium Business and Small Business.
Flip CX is designed for and Large Enterprises.
The starting price of Zendesk Support begins at $19/user/month when yearly, while pricing details for Flip CX are unavailable.
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.
Some top alternatives to Flip CX includes and undefined.