The best alternatives to Secure ShellFish are Ngrok, FTPloy, and Pisth. If these 3 options don't work for you, we've listed a few more alternatives below.
Ngrok is multiplatform tunneling, reverse proxy software that establishes secure tunnels from a public endpoint such as internet to a locally running network service while capturing all traffic for detailed inspection and replay.
Pisth is an open source SSH and SFTP client for iOS. Main Features: • Manage files in your SSH server and use the Shell in the same app. • Edit text files and code with colored syntax. • The terminal is like xterm, so you can use text editors such as nano, vim, etc. • SSH Keys • Open multiple panels in iPad. • Find servers with Bonjour.
Termix is a finely crafted ssh client for Windows and MacOS. The primary goal of termix is to minimize the cumbersomeness of remote server management in order to benefit both beginners and operations masters can easily perform a variety of server-related work.