ranger is described as 'file manager with VI key bindings. It provides a minimalistic and nice curses interface with a view on the directory hierarchy' and is an app in the File Management category. There are more than 25 alternatives to ranger for a variety of platforms, including Linux, Windows, Mac, BSD and Android. The best alternative is Double Commander, which is both free and Open Source. Other great apps like ranger are Midnight Commander (Free, Open Source), Dolphin File Manager (Free, Open Source), Thunar (Free, Open Source) and fman (Freemium).