How good it is
It does not work that good but it works when there is metal up to the surface
Works perfect
I tested with magnets and light metals. It works perfect. Super simple. It’ll give you the measurements on screen.

This utility app transforms your iPhone into a metal detector using its magnetic field sensor. It detects nearby metal objects by measuring variations in the magnetic field. Be cautious not to hold your device too close to strong magnets to prevent potential damage.
2.1.5
March 6, 2026
App bug fixes and stabilization.
i Metal Detector is a utility application that uses your iPhone's built-in magnetic field sensor to detect the presence of metal objects nearby. It works by measuring fluctuations in the magnetic field around your device.
The app leverages the magnetic field sensor present in iPhones and iPads. When you bring your device close to a metal object, the magnetic field changes, and the app interprets these variations to indicate the presence of metal.
Yes, i Metal Detector is available for free. However, it does contain advertisements, as indicated by its ad-supported monetization model.
i Metal Detector is compatible with iPhones, iPads, and iPods. It requires a device with a magnetic field sensor to function correctly.
The app has an age rating of 4+, making it suitable for users of all ages. It is a straightforward utility application with no mature content.
The latest version of i Metal Detector is 2.1.5, which was last updated on March 6, 2026. While the update date is in the future, it suggests the developer intends to maintain the app.
Yes, i Metal Detector contains advertisements. This is part of its free distribution model, allowing users to access the functionality without direct payment.
The app description warns users to refrain from holding the iPhone too close to strong magnets, as this could potentially cause failure. It is advisable to use the app with caution around powerful magnetic sources.