Transmit iOS is described as 'If you're a pretty serious nerd like us, you probably have access to an FTP, SFTP, WebDAV or Amazon S3 server that you use for, say, web serving, group collaboration, as a personal cloud storage service, or who knows what' and is a File Manager in the File Management category. There are more than 10 alternatives to Transmit iOS for a variety of platforms, including Mac, Windows, Linux, BSD and Finder. Most alternatives are File Managers and FTP Clients. The best alternative is Double Commander, which is both free and Open Source. Other great apps like Transmit iOS are Total Commander (Freemium), Cyberduck (Free, Open Source), GNOME Files (Free, Open Source) and Forklift (Freemium).
The Finder is the first thing that you see when your Mac finishes starting up. It opens automatically and stays open as you use other apps. It includes the Finder menu bar at the top of the screen and the desktop below that.