The FAQ is incredibly useful, please start with it if you have any questions, but if it doesn’t answer what you are wondering about please see the contact tab how to get support.

Don’t forget to DOUBLE TAP on the map to bring up A/FD and TPP.

View the demo here.

 The chart symbol terminology from FAA can be downloaded here.
(its included in the app if you double tap, then scroll down to the bottom).