Yes, both Nusii and Prospero offer a Free Trial.
Nusii is designed for Large Enterprises, Medium Business and Small Business.
Prospero is designed for Individuals, Large Enterprises, Medium Business and Small Business.
The starting price of Nusii begins at $24.16/Month when Billed Yearly, while pricing details for Prospero are unavailable.
Some top alternatives to Nusii includes PandaDoc, Offorte, Proposify, Better Proposals, Proposable, Propoze, ProposalPad, Fresh Proposals, Prospero and Proposa.
Some top alternatives to Prospero includes PandaDoc, Offorte, Proposify, Better Proposals, Bidsketch, Propoze, Privia, Docspo, ProposalPad, Fresh Proposals and Proposa.