$10 mobile app-like upgrade could have helped track missing Flight MH370

 A cheap upgrade to the system of the plane, which is like a mobile phone app, could have reportedly helped track the ill-fated Malaysian Airline Flight MH370 better.

An upgrade to a system called Swift, which wholesales for around $10 per flight, would have enabled MH370 to transmit data about its trajectory and position even after the plane's transponder systems had been switched off.

According to news.com.au, a similar system enabled searchers to locate the Air France jet which crashed into the Atlantic Ocean in 2009 and its wreckage was found within five days.

A satellite industry official revealed that many airlines use the upgraded Swift system and its use is mandatory on planes flying in the North Atlantic corridor between the Europe and the US but not on other plane routes.

It has been 13 days since the authorities have been trying to desperately locate the missing jet, as once the 30-day deadline of the plane's black box ends, there would be no evidence left to unlock the mystery behind the plane's sudden disappearance.

Meanwhile, the FBI is looking into the homemade flight simulator belonging to the pilot of the Flight MH370.

Numerous theories have emerged since the plane's disappearance, including terrorism, pilot suicide, sea crash and fire.