Pisth - Pisth is an open source SSH and SFTP client for iOS.
Dataplicity - Dataplicity is a remote terminal for your Pi.
Prompt 2 by Panic - The best SSH client for iOS
Termix - Modern and easy to use ssh client for macOS and Windows
Commander One - Free dual-pane file manager for Mac with PRO Pack of features.
ShellHub - ShellHub enables teams to easily access any Linux device behind firewall and NAT