Paranormal Spirit EMF Yes / No

An EMF Version of Yes / No This app works similar to other Yes / No devices by using the Magnetometer within your phone / tablet to detect changes. The screen will pulse from blue to black and back to blue while waiting for a response. A red dot will circle around the middle showing that the magnetometer is receiving values. If a change is detected on the left it will light up green, if it is detected to the right it will light up red. You can choose between a beep (when a change is detecte