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 ...

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 ...

Using a stud finder may seem unnecessary, but it's probably one of the most important steps when it comes to hanging anything substantial on the wall, says Anna Kroesser of Kroesser + Strat Design ...