Standard Android smartphones lack the hardware required for true long-range or satellite-based metal scanning.

This data requires massive computing power to process. It is used to find large oil reserves, massive mineral deposits, or archaeological ruins—not a lost ring or a pipe behind a wall. No consumer Android app has the processing power, bandwidth, or authorization to stream live, high-resolution satellite scans to detect small metal objects. Why Do These Apps Exist?

These use your phone's actual magnetic sensor but wrap the interface in a space-themed or satellite-themed skin to stand out in the app store. How to Choose a Genuine Metal Detection App