The Outline app allows users with access keys to connect to the Outline server and the
open web through their connected devices.

Connect to your server using your unique access key, generated by the Outline Manager.
Since it’s primary function is to encrypt your device’s internet traffic, you must have
an access key from an Outline server administrator in order to use it effectively. This
access key contains an encryption code or password that allows your device to
communicate with the Outline server.