Yes, both WebGreeter and Chatlio offer a Free Trial.
WebGreeter is designed for Large Enterprises, Medium Business and Small Business.
Chatlio is designed for Large Enterprises and Medium Business.
Pricing for WebGreeter Starts at $20/User/Month whereas for Chatlio Starts at $29/Month.
Some top alternatives to WebGreeter includes ZoomInfo Chat, LiveAgent, LiveChat, Crisp, LiveEngage, DeskMoz, Smartchat, LinkedChat, ChatFlow247, Freshchat and Let's Connect.
Some top alternatives to Chatlio includes ZoomInfo Chat, Microsoft Power BI, LiveChat, LiveEngage, MyLiveChat, Zendesk Chat, Intercom, Comm100 Live Chat, HelpOnClick, WebsiteAlive and LinkedChat.