Since a screenshot of the Just Landed app shows up in the image carousel on your link, I am assuming that they used FlightAware for their data. FlightAware charges people for API access, and also specifically provides a set of tools for FBOs (<a href="https:&#x2F;&#x2F;flightaware.com&#x2F;commercial&#x2F;fbotoolbox" rel="nofollow">https:&#x2F;&#x2F;flightaware.com&#x2F;commercial&#x2F;fbotoolbox</a>).