OpenSSH is the premier connectivity tool for remote login with the SSH protocol. It encrypts all traffic to eliminate eavesdropping, connection hijacking. Developed by Theo de Raadt
License: Open Source
OpenSSH is a robust and widely-used SSH protocol implementation, ideal for advanced users requiring extensive features such as tunneling and file transfers. In contrast, ConnectBot is a mobile SSH client designed for ease of use and quick access, but lacks some advanced functionalities found in OpenSSH.