Yes, both RMail and Formstack Sign offer a Free Trial.
RMail is designed for Medium Business and Small Business.
Formstack Sign is designed for Large Enterprises, Medium Business and Small Business.
Pricing for RMail Starts at $6.99/User/Month whereas for Formstack Sign Starts at $16/User/Month when Billed Yearly.
Some top alternatives to RMail includes PandaDoc, DeliverySlip, SignRequest, Signaturit, HelloSign, SignFree, E-Sign, eSigns, SignBox and eSign by SquidSoft.
Some top alternatives to Formstack Sign includes PandaDoc, Signable, eversign, DocuSign, signNow, Docu Signer, Document eSign, MyDocSafe, E-Sign and eSign by SquidSoft.