ConnectBot
ConnectBot is an open-source Secure Shell client for the Android operating system. It lets users securely log in remotely to servers that run a secure shell daemon. This allows the user to enter commands from their Android device and have the commands run on the remote server instead of the local android device. It uses the standard encryption used by SSH2 to keep any commands and data that are transmitted from being eavesdropped by any potential listeners across the network. Features. Once the connection has been made with the remote server, the program presents the user with a  terminal where input and output can be sent/received just as if the user were sitting in front of a terminal on the actual server. Reception. ConnectBot is the most popular Secure Shell client available for the Android operating system, with over 1,000,000 downloads and more than 43,000 ratings on Google Play with an average rating of 4.5/5.