Mito: Metal Detector & Stud

Find metal, studs, nails, pipes and wiring behind walls in seconds. Turn your iPhone into a precise metal detector and stud finder — free, offline, no setup.

Turn your iPhone into a metal detector and stud finder — instantly, and completely offline.

Metal Detector & Stud Finder uses your iPhone's built-in magnetometer to measure changes in the magnetic field around you, helping you locate hidden metal objects and the studs, nails and screws behind your walls. No extra hardware, no setup, no account.

TWO MODES • Metal Detector — sweep your phone to find coins, keys, jewelry, pipes, wiring, rebar and other metallic objects. The reading rises as you get closer. • Stud Finder — move slowly across a wall to spot the magnetic peaks from nails and screws in wooden studs, so you know where it's safe to drill or hang.

FEATURES • Live magnetic field strength in microtesla (µT) • Large, easy-to-read animated gauge • Signal strength indicator (Low / Medium / High) • Peak value tracking with one-tap reset • Audio feedback that scales with the signal • Haptic feedback on strong readings • Quick sensor calibration • Light & Dark Mode • Works fully offline

HOW IT WORKS Every iPhone contains a magnetometer (the sensor behind the compass). Metal objects and the magnetized nails in wall studs distort the surrounding magnetic field. This app visualizes those changes in real time so you can pinpoint them.

GOOD TO KNOW This app detects ferromagnetic (magnetic) metals and magnetized objects best. Like all phone-based detectors, it depends on your device's sensor and nearby interference, so results are a helpful guide rather than a professional-grade measurement.

Free to use with every feature included. A one-time "Remove Ads" purchase is available if you'd like an ad-free experience.