FLY is FUN. FLY is FUN is a moving map for aviation and pilots providing ILS and GPS approach, VOR, NDB, DME, Marker beacons, RNAV navigation and Marker beacons s, without ILS/VOR/NDB/RNAV equipment on board. "FLY is FUN" is a complete application, without any restriction, if used with "FLY is FUN Unlocker".