Yes, both Messagely and Zendesk Chat offer a Free Trial.
Messagely is designed for Large Enterprises, Medium Business and Small Business.
Zendesk Chat is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Messagely Starts at $29/Month whereas for Zendesk Chat Starts at $19/User/Month when Billed Yearly.
Some top alternatives to Messagely includes ZoomInfo Chat, LiveAgent, LiveChat, Crisp, Zendesk Chat, Zoho SalesIQ, Smartchat, JivoChat, LinkedChat, 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.