If you are one of those people who feel uneasy in a crowded place, or you are afraid that you may be the victim of a crime, then you should download this Hidden Camera Detector:Electr app. With this app, you can be on the lookout for any electronic devices that may be spying on you. This app will help you in detecting any hidden camera or device that may be watching you.

This app works on the principle of a magnetometer. If there is a magnetic field present, the magnetic field sensor in your mobile will detect it. If there is no magnetic field, then the sensor will not detect anything.