EMF Detector is used to detect electromagnetic fields, metals, and devices. It can be used to identify the presence of paranormal entities as sudden changes in the EM field may indicate so.

Data is shown on a real-time updating graph and an LED indicator display by the app using the magnetic field sensor that is in your device. The app offers greater accuracy to the user, graphs of the displayed readings, and the ability to calculate and show the auxiliary field H, which is calculated from the magnetic field. For inexperienced users, measuring and studying magnetic fields is made simpler by the app's simple user interface (UI).