Yes, both Smartchat and LiveAgent offer a Free Trial.
Smartchat is designed for Medium Business and Small Business.
LiveAgent is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Smartchat Starts at $49/Month whereas for LiveAgent Starts at $15/User/Month.
Some top alternatives to Smartchat includes ZoomInfo Chat, LiveAgent, LiveChat, Crisp, LiveEngage, DeskMoz, Lime Talk, WebsiteAlive, ChatFlow247 and Let's Connect.
Some top alternatives to LiveAgent includes Zendesk Support, Zoho Desk, Tidio Helpdesk, Freshservice, ManageEngine ServiceDesk Plus, Freshdesk, ClickDesk, HelpDesk, SysAid, Jitbit Helpdesk, Desky, Help Scout, LabiDesk, LiveChat, Zendesk Chat, LiveHelpNow and Little SaaS Communication.