Need to drill into a stud, but you don't know where the studs in your walls are? Here's how to find them without a stud ...

Stud Find uses the magnetometer as a metal detector.Testing the app on an iPhone 5, we found it works best when moved slowly iPhone App Actually Locates Wall Studs | 2013-07-02 | ENR | Engineering ...

Some stud finders also identify different materials behind your wall. In addition to the wood studs (or their steel screws) that all stud finders locate, some also differentiate between other ...

However, the iPhone’s built-in magnetometer does allow apps to locate metal wall studs, nails, screws or any ferromagnetic material—meaning it also won't work on some types of stainless steel ...