Yes, both SignBox and PandaDoc offer a Free Trial.
SignBox is designed for Individuals, Large Enterprises, Medium Business and Small Business.
PandaDoc is designed for Large Enterprises, Medium Business and Small Business.
Pricing for SignBox Starts at $4.91/Month when Billed Yearly whereas for PandaDoc Starts at $19/User/Month when Billed Yearly.
Some top alternatives to SignBox includes PandaDoc, Signaturit, DocuSign, RightSignature, Document eSign, E-Sign, OneSpan eSignature, eSigns, eSign by SquidSoft and Lightico eSignature.
Some top alternatives to PandaDoc includes Proposify, Qwilr, Proposable, seProposals, Docspo, Adobe Sign, DocuSign, HelloSign, QorusDocs and Conga Composer.