board, many turned to the website flight radar 24. flight radar 24 revealing the exact moment that the airbus jet began falling from 31,000 feet detecting the plane wobbling from side to side, an indication it broke apart before plummeting to earth. something the faa hasn t done, ntsb and europe hasn t been able to pull it together. reporter: now used by airlines and intelligence officials to track friglights, started as a game make. the flight tracking service became much more popular than the price comparison part. reporter: son tracking planes became robertson s primary business. flight radar 24 is the number one selling app for apple in more than 100 countries. flight radar building a never before seen map of the skies with realtime information on every single one of the 100,000 flights that take off and land