Yes, both Zendesk Talk and HappyFox Chat offer a Free Trial.
Zendesk Talk is designed for Individuals, Large Enterprises, Medium Business and Small Business.
HappyFox Chat is designed for Medium Business and Small Business.
Pricing for Zendesk Talk Starts at $9/User/Month whereas for HappyFox Chat Starts at $29/Month.
Some top alternatives to Zendesk Talk includes Nextiva, TalkDesk, uContact, HoduCC, Call Center Studio, TelebuHub, Zendesk Support, VoxDesk, Zendesk Chat and Freshdesk Contact Center (Formerly Freshcaller).
Some top alternatives to HappyFox Chat includes ZoomInfo Chat, LiveAgent, LiveChat, ProProfs Chat, Crisp, LiveEngage, WebsiteAlive, Smartchat, LinkedChat, ChatFlow247 and Freshchat.