Yes, both Contact At Once and Crisp offer a Free Trial.
Contact At Once is designed for Medium Business and Small Business.
Crisp is designed for Individuals, Freelancers, Medium Business and Small Business.
Pricing for Contact At Once Starts at $1,100/Month whereas for Crisp Starts at $25/User/Month.
Some top alternatives to Contact At Once includes ZoomInfo Chat, LiveAgent, LiveChat, Crisp, LiveEngage, MyLiveChat, Smartchat, raychat, LinkedChat, ChatFlow247 and Let's Connect.
Some top alternatives to Crisp includes ZoomInfo Chat, LiveChat, LiveEngage, Pure Chat, DeskMoz, MyLiveChat, Intercom, Smartchat, ChatFlow247, Freshchat and Let's Connect.