You could have downloaded XPFlightPlanner 2.0 for Mac from our software library for free. The program relates to Lifestyle Tools. The most popular version among the application users is 2.0. The common filename for the program's installer is xpflightplanner_2.0.0.dmg. This Mac app was originally designed by Xpflightplanner.
From the developer:
XPFlightplanner is a simple application for generating flightplans that can be natively used with X-Plane. Airports, points and routes are extracted from the X-Plane world database. An automatic route finder lets you create new flightplans from an airport to another.
You may want to check out more software for Mac, such as JMP 7, CmapLite or Spartan, which might be related to XPFlightPlanner.