{"id":47195,"date":"2024-07-04T23:57:18","date_gmt":"2024-07-04T23:57:18","guid":{"rendered":"https:\/\/noticiatecnologia.com\/?p=47195"},"modified":"2026-08-15T00:29:06","modified_gmt":"2026-08-15T00:29:06","slug":"applications-to-detect-gold-using-your-cell-phone","status":"publish","type":"post","link":"https:\/\/noticiatecnologia.com\/en\/aplicativos-para-detectar-ouro-utilizando-o-celular\/","title":{"rendered":"Mobile apps for detecting metals: why none of them find gold."},"content":{"rendered":"

Searching for "app to detect gold" is one of the most popular in app stores \u2014 and also one of the most disappointing. Let's get straight to the point: No mobile app finds gold.<\/strong>. It's not a matter of a good or bad app, or an expensive or cheap device. It's physics.<\/p>\n\n\n\n

The sensor that these apps use is the magnetometer<\/strong>, the same component that makes the cell phone compass work. It measures variations in the magnetic field around the device. But gold It is not ferromagnetic.<\/strong>It doesn't disturb the magnetic field in a way that a cell phone magnetometer could register. Therefore, even with a nugget touching the screen, the app's graph doesn't move.<\/p>\n\n\n\n

This doesn't mean these apps are useless. They do one very specific thing and they really work at it. This guide explains exactly what to expect from your phone's magnetometer, which apps to use, and what requires real equipment.<\/p>\n\n\n\n

What does the cell phone sensor actually detect?<\/h2>\n\n\n\n

The magnetometer reacts to the presence of ferrous metals<\/strong> \u2014 iron, steel, cast iron, nickel, and alloys containing these materials. It also reacts to magnets and fields generated by electric current. And the range is short: we're talking about a few centimeters<\/strong>, not meters.<\/p>\n\n\n\n

In practice, a metal detector app on your cell phone is useful for:<\/p>\n\n\n\n