Viper is a mobile app that allows lawyers that represent both sides of a case to read, edit, approve and share documents.
A multi-level side menu gives the user access to documents, check lists and resources. Once a document is opened the user can tap to view a breakdown of all associated issues.
Users can edit, comment and approve changes in situ. The History pane uses coloured panels to show how many changes have been made by each side on the horizontal axis and how long they took on the vertical.