Metro PuTTY is a port of the popular desktop app PuTTY, and therefore you should consult the PuTTY documentation for most of your questions. You may also email me directly at the address listed below.
Link to PuTTY
Metro PuTTY implements the SSH protocol and is able to connect to remote servers. Connections are only made after the request of the user to the specified host and TCP port number and a connection will send needed user data to create the connection such as the username. Entered settings may be saved locally if the user chooses so and will sync across devices through Microsoft's roaming settings functionality. The software sends no data to the author or any other third party. There is no warranty provided with this software.