Apps similar to FolderSpan include Double Commander, which is free and open source. Other options are Total Commander. Between them they cover Windows, Linux, Android and Mac.
Open-source file manager with dual-panel interface, inspired by Total Commander. Supports plugin use, advanced search, tabbed browsing, and runs smoothly with background operations. Unicode and multi-platform compatibility enhance its versatility.
Russia
A versatile file manager offering side-by-side dual-pane for intuitive navigation, powerful built-in FTP client, extensive archive format support, robust file comparison tool with editor, advanced multi-rename using regular expressions, and scalable customization options.
Switzerland
