Revisor has a Graphical User Interface or GUI, in addition to the Command Line Interface or CLI, which makes Revisor more accessible to users then the other tools, which are CLI only. Most people only know of Revisor through the GUI, and may think there is no CLI to Revisor. Only when it comes down to many of the additional features that Revisor has, and that do not fit in a simplified GUI, one gets down with it using the CLI.