Hi, this is a telnet client.
The difference between this telnet client and the others is that this allow you to use a proxy server of type SOCKS.
Proxy settings are configured to default to connect to the TOR proxy client installed in your device.
If you installed ORBOT this app is able to use it to default.
You can install ORBOT from https://play.google.com/store/apps/details?id=org.torproject.android&hl=it
Using ORBOT or any other proxy is possible to hide your traffic and the provenience of it
and it allow you to operate in totally anonymity.