Yes, both Clust and Docsmore offer a Free Trial.
Clust is designed for Medium Business and Small Business.
Docsmore is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Docsmore begins at $18/User/Month when Billed Yearly, while pricing details for Clust are unavailable.
Some top alternatives to Clust includes Document Locator, Docsvault, PaperNIC, DocuWare, Documint, docEdge DMS and Docsmore.
Some top alternatives to Docsmore includes M-Files, Dokmee Document Management, Documentator, Avodocs and Documint.