Metal Detector · Key Finder

Turn your iPhone into a metal detector using the built-in magnetometer sensor. FEATURES • Real-time signal gauge with color indicator • Adjustable sensitivity: Low, Medium, High • Sound and vibration alerts • Auto calibration for accurate readings • Readings in μT or mG HOW TO USE Open the app, tap START, then slowly sweep your phone over surfaces. The gauge lights up and alerts trigger when metal is nearby. Great for finding keys, coins, jewelry, nails, and other small metal objects.