Yes, both Kayako and Freshdesk offer a Free Trial.
Kayako is designed for Large Enterprises, Medium Business and Small Business.
Freshdesk is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
The starting price of Freshdesk begins at $15/User/Month when Billed Yearly, while pricing details for Kayako are unavailable.
Some top alternatives to Kayako includes Zoho Desk, Zendesk Support, ManageEngine ServiceDesk Plus, Freshservice, Freshdesk, Deskero, Teamwork Desk, LiveAgent, HelpDesk, SysAid, Jitbit Helpdesk, CRMdesk, Sitehelpdesk, LabiDesk, HESK and BoldDesk.
Some top alternatives to Freshdesk includes Zoho Desk, Zendesk Support, ManageEngine ServiceDesk Plus, SeamlessDesk, LiveAgent, HelpDesk, SysAid, HubSpot Service Hub, Salesforce Service Cloud, CRMdesk, Helpspot, Sitehelpdesk and Trakdesk.