aMagnet is a simple and intuitive app that, using the magnetometer on your iPhone, lets you evaluate the health risks of your family due to magnetic field exposure.
It can also be used to find missing metal objects or to find metal pipes or electrical cables inside the walls, as well as any microphones or microspies.
Just start detecting to assess environmental risk or approach your iPhone (the magnetometer is in the upper left) to the area you want to measure and you will see the magnetic field variations indicated by the app.
Each survey can be saved in the app, along with location data, an image or a photo, so you know where it is and in detail get directions for the location.
You can also save an image of each detail and share it as you like.