This utility app transforms your iPhone into a metal detector using its built-in magnetometer. It measures magnetic fields to help you locate ferromagnetic objects like keys, coins, and electronics.


10+ similar apps compared and reviewed
Whether you want more options like OK Works or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.


This utility app transforms your iPhone into a metal detector using its built-in magnetometer. It measures magnetic fields to help you locate ferromagnetic objects like keys, coins, and electronics.












Measure light intensity for your plants using your phone's camera. Get lux, foot-candle, and professional PPFD readings for grow lights. Track daily light integral and get plant recommendations based on your environment.