Yes, both Crisp and Prospero offer a Free Trial.
Crisp is designed for Individuals, Freelancers, Medium Business and Small Business.
Prospero is designed for Individuals, Large Enterprises, Medium Business and Small Business.
The starting price of Crisp begins at $25/User/Month, while pricing details for Prospero are unavailable.
Some top alternatives to Crisp includes ZoomInfo Chat, LiveChat, LiveEngage, Pure Chat, DeskMoz, MyLiveChat, Intercom, Smartchat, ChatFlow247, Freshchat and Let's Connect.
Some top alternatives to Prospero includes PandaDoc, Offorte, Proposify, Better Proposals, Bidsketch, Propoze, Privia, Docspo, ProposalPad, Fresh Proposals and Proposa.