EMF Detector is an android application that analyzes the electromagnetic fields on three axis (X, Y, Z), although the fluctuations may vary, the detection of the energy/magnetic field could potentially be calculated. The value may vary as we know EMF is not stable but it can calculate the approximate value.
(This application is specifically developed to bring down the effect of electromagnetic field with the Integration of Aikya CHIP (anti-Radiation chip) to the mobile device).