But the idea of it is important. It reflects our desire to see beyond our limited human vision. For now, if you want to find metal, buy a real ground-penetrating radar device or a simple magnet. If you want to explore space, download NASA’s official apps. And if you see an APK promising X-ray vision from orbit, remember the golden rule of the internet: if it sounds too good to be true, it’s probably just a piece of malware waiting for a host.