The basic version of DocuStor is good and offers a simple, low-cost route to Cloud-based electronic document filing. It is, however, limited in configurability: Evo2 offers complete flexibility in creation and organization of searchable fields. It also provides advanced encryption facilities that offer total security from unauthorised access. Evo3 introduces the ability to search document content using state-of-the-art search engine technology so that documents can be found with the flimsiest of information. Cost is modest for such powerful tools - just £395 + VAT for Evo2 and £495 + VAT for Evo3 and the same monthly subscription as for the basic version: £30 + VAT including 10gb of storage (approx 1/2 million A4 scans) and £10 + VAT for each additional 10gb.