Yes, both WhosOn and Zendesk Chat offer a Free Trial.
WhosOn is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Zendesk Chat is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for WhosOn Starts at $33/User/Month whereas for Zendesk Chat Starts at $19/User/Month when Billed Yearly.
Some top alternatives to WhosOn includes ZoomInfo Chat, LiveAgent, LiveChat, Crisp, LiveEngage, Smartsupp, Zendesk Chat, Lime Talk, Smartchat, ChatFlow247 and Let's Connect.
Some top alternatives to Zendesk Chat includes ZoomInfo Chat, LiveAgent, LiveChat, LiveEngage, Intercom, Comm100 Live Chat, Smartchat, raychat, Freshchat, RingCentral Engage Digital and Let's Connect.