Yes, both SmartFile and Content Central offer a Free Trial.
SmartFile is designed for Large Enterprises and Medium Business.
Content Central is designed for Large Enterprises, Medium Business and Small Business.
Pricing for SmartFile Starts at $6/User/Month whereas for Content Central Starts at $35/User/Month.
Some top alternatives to SmartFile includes PandaDoc, DocSend, M-Files, FileHold, Onehub, ShareFile, FileCloud, NetExplorer, Cabinet EDMS, etfile and EZ Doc Filer.
Some top alternatives to Content Central includes PandaDoc, M-Files, PaperNIC, DocuWare, CDOC, Greenbox, docMgt, EZ Doc Filer, Addmin, docEdge DMS and Docsmore.