Yes, both Kayako and Tidio Helpdesk offer a Free Trial.
Kayako is designed for Large Enterprises, Medium Business and Small Business.
Tidio Helpdesk is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Tidio Helpdesk begins at $24/month when yearly, while pricing details for Kayako are unavailable.
Some top alternatives to Kayako includes Zendesk Support, Zoho Desk, Tidio Helpdesk, Freshservice, ManageEngine ServiceDesk Plus, Freshdesk, Deskero, Teamwork Desk, LiveAgent, HelpDesk, SysAid, Jitbit Helpdesk, CRMdesk, Sitehelpdesk, LabiDesk, HESK and BoldDesk.
Some top alternatives to Tidio Helpdesk includes Zendesk Support and Zoho Desk.