Advice if possible to use for onpremise intranet Sharepoint
And also if possible to connect to intranet application.
If an internet connection is not available, it is possible to do a manual activation via email. When you try to run the application, there will be an activation failure prompt with the option to activate by email with instructions on how to do so.
Could you please elaborate on what you mean by connect to an intranet application please?