Yes, both Zoho Desk and LiveHelpNow offer a Free Trial.
Zoho Desk is designed for Large Enterprises, Medium Business and Small Business.
LiveHelpNow is designed for Medium Business and Small Business.
Pricing for Zoho Desk Starts at $7/user/month when yearly whereas for LiveHelpNow Starts at $9/Month.
Some top alternatives to Zoho Desk includes Zendesk Support, Tidio Helpdesk, ManageEngine ServiceDesk Plus, Jira Service Desk, HelpDesk, SysAid, Desky, ReadyDesk, Sitehelpdesk, Trakdesk, HESK and BoldDesk.
Some top alternatives to LiveHelpNow includes ZoomInfo Chat, ClickDesk, Deskero, LiveAgent, HelpDesk, lemtalk, LabiDesk, LiveChat, Crisp, Zendesk Chat and HelpOnClick.