Metal Detector - Gold Detector is a free Android app developed by Synosure Tech, which falls under the category of Utilities & Tools. The app is a metal detector that uses the magnetometer sensor of your phone to detect ferrous metals. It has multiple scanning modes with unique features and performance.

The app is simple to use and requires you to calibrate your phone's magnetic sensor before metal detection. You can calibrate the sensor by moving your phone far away from any magnetic interference and then waving it in a figure-eight rotating pattern in different directions. The app uses a digital meter to indicate the detection of metal objects, and the meter's value increases from 50μT onwards. Additionally, the app provides sound and vibration alerts when it detects metals.

Metal Detector - Gold Detector is a useful app for finding studs in walls, hidden devices, and magnetic radiation. However, the app requires a magnetic sensor to work, and if your phone does not have one, the app will not function.