Does the Ghost Radar app really work?

Answer 1

The official description of how Ghost Radar works (acording to it's developer Spud Pickles) is as follows:

How does Ghost Radar work?

Modern mobile devices are amazing devices filled with sensors and transceivers. To name a few, there is a WiFi transceiver, a touch sensor, an acceleromete, a phone transceiver, a microphone, and a magnetometer. As you can see there are plenty of ways for paranormal activity to interact with the device, the trick is to interpret the readings from these sensors and receivers and present them in a way to help track the paranormal activity.

The majority of equipment used to hunt for paranormal activity was not originally designed to hunt ghosts and do not find the majority of their use in the paranormal. For example EMF detectors and KII meters were designed for electrical work and are used predominantly in that field, not the paranormal. Also, IR cameras were originally developed during the Korean War for the military to find enemies in the dark. These days IR cameras are mostly used by firefighters, astronomy, police, etc. Even though these devices were not originally designed for the field of paranormal they do seem to be the most effective tools in the hunt for the unknown.

Ghost Radar enables your mobile device to be used for the paranormal even though the device was not originally designed for the paranormal, just like the EMF detector, KII meter, and IR camera. The readings that Ghost Radar presents are open to your interpretation and up for debate.

Ghost Radar uses a variety of readings from the sensors on the iPhone and iPod touch to measure anomalous changes in the Quantum Flux. A large portion of the flux readings come from the background anomalies of the accelerometer. These sensor readings come in constantly and have only very minor changes. Ghost Radar tracks these readings and analyzes them; watching for strange behavior. Based on a multitude of different readings and historical trends Ghost Radar uses its proprietary algorithm to present various visual and audible representations of the readings.

I have personally had very good results using Ghost Radar and believe that the possibility that it is actually being used as a communication device between the dead and the living is about 50% probable.