When your license has expired or has become invalid for any other reason, you can still keep using the software. You receive a notification of this after logging in:

In addition to this administrative message, the tiles served through the tile server are greyed out. Each tile is also provided with a notification warning, making it obvious and that you should contact Pathomation to resolve the issue.

When starting the application for the first time a license will be required.

When license expiration is less than a month away, a warning message appears:

When the license is expired, you are notified of this right after logging in: