i Metal Detector is a free utility application designed for iPhone users, utilizing the device's built-in magnetic field sensor to detect nearby metal objects. By measuring variations in the magnetic field, the app allows users to identify the presence of metal in their surroundings, making it a practical tool for various tasks, including locating hidden metal items or assessing the magnetic environment.

Users are advised to hold their iPhone closer to potential metal sources for accurate readings. The app is especially sensitive to iron materials and electronic devices. However, caution is recommended when near strong magnets, as they may cause interference and potentially harm the iPhone's functionality. Overall, i Metal Detector provides an accessible and straightforward method for metal detection on the go.