Yes, both Help Desk Premier and LiveAgent offer a Free Trial.
Help Desk Premier is designed for Large Enterprises, Medium Business and Small Business.
LiveAgent is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
The starting price of LiveAgent begins at $15/User/Month, while pricing details for Help Desk Premier are unavailable.
Some top alternatives to Help Desk Premier includes Zoho Desk, Zendesk Support, ManageEngine ServiceDesk Plus, Freshservice, Freshdesk, SeamlessDesk, LiveAgent, HelpDesk, SysAid, Jitbit Helpdesk, Rhino Support, ReadyDesk, HelpdeskEddy, Sitehelpdesk, LabiDesk and BoldDesk.
Some top alternatives to LiveAgent includes Zoho Desk, Zendesk Support, ManageEngine ServiceDesk Plus, Freshservice, Freshdesk, ClickDesk, HelpDesk, SysAid, Jitbit Helpdesk, Desky, Help Scout, LabiDesk, LiveChat, Zendesk Chat, LiveHelpNow and Little SaaS Communication.