Addmin offers Free Trial, but Paperback does not.
Paperback is designed for Large Enterprises, Medium Business and Small Business.
Addmin is designed for Freelancers and Small Business.
Pricing for Paperback Starts at $7/User/Month whereas for Addmin Starts at $4.90/Month when Billed Yearly.
Some top alternatives to Paperback includes PandaDoc, DocuWare, Documentator, Documize, docMgt, EZ Doc Filer, OpenKM Document Management, Addmin, Docsmore and DocuWork.
Some top alternatives to Addmin includes PandaDoc, M-Files, PaperSave, Docsvault, Content Central, Cabinet EDMS, docMgt, EZ Doc Filer, docEdge DMS, Docsmore and DocuWork.