Yes, both Docspo and Pro-Posal offer a Free Trial.
Docspo is designed for Large Enterprises, Medium Business and Small Business.
Pro-Posal is designed for Individuals, Medium Business and Small Business.
Pricing for Docspo Starts at $19/User/Month when Billed Yearly whereas for Pro-Posal Starts at $30/Month.
Some top alternatives to Docspo includes PandaDoc, Proposify, Better Proposals, Proposable, Propoze, seProposals, NiftyQuoter, ProposalPad, Fresh Proposals and Prospero.
Some top alternatives to Pro-Posal includes PandaDoc, Offorte, GoProposal, Bidsketch, RocketDocs, seProposals, Docspo, NiftyQuoter, ProposalPad and Fresh Proposals.