What do FileZilla, CoreFTP & CyberDuck have in common?

There is at least one thing that FileZilla, CoreFTP, and CyberDuck have in common. The answer to that question is that they all have a connection to the use of FTP and the transference of data between them. I have some information to prove it or support this answer. CyberDuck is an open source client for cloud storage, SFTP, WebDAV, and FTP. CyberDuck also has FTP. FileZilla is a cross-platform FTP application which has FTP. Finally, CoreFTP which literally has FTP in the name and is a secure FTP client for Windows has FTP just like the others. All in all, the programs have FTP relating to them.

Picture of FileZilla program