STUD FINDER:
This app will help you to detect metal studs. It uses the magnetometer to measure the magnetic field when your iPhone is placed near metal objects.
INSTRUCTIONS:
If your device has an external case then please remove it before using this app.
DOES IT WORKS?
To check if this app is working, place your iPhone near a stainless steel object and see that the indicator changes.
WHERE IS THE SENSOR?
The sensor is located on the right of your iPhone cameras. Keep that in mind to get better results.