Ghost Radar® is a free app to become aware of any paranormal activities around you. It gives you to check for any electromagnetic field around you with attractive sensor. Using this sensor takes the probe to an easy-to-use EMF assessment to see if you're around. It will generally be used for an apparition area, any paranormal improvement around you as well as any source that sends electromagnetic radiation and get a handle on it. expect no electromagnetic radiation or any metal yet show or give any analysis it is clear that there is something stranger around you or there is a ghost around you