FTP Clients

Turbo FTP Client

Supports FTP, FTPS, FTPES and SFTP

Play Store link

AndFTP

AndFTP is a FTP, FTPS, SCP, SFTP client. It can manage several FTP configurations. It comes with both device and FTP file browser. It provides download, upload, synchronization and share features with resume support. It can open (local/remote), rename, delete, update permissions (chmod), run custom commands and more. SSH RSA/DSA keys support.

Play Store link

Total Commander

Total Commander has a plugin that enables FTP & SFTP file transfers.

Play Store link