Biometric technology has been around for a long time. It has been used in a variety of applications. However, Apple Touch ID was one of the first successful implementations of fingerprint scanning to unlock your phone. The Apple Touch ID makes the everyday interaction with your smartphone convenient, avoiding the additional swipe functions that were used to associate with finger scanner earlier. Seeing this innovation, other smartphone market leaders like Samsung soon followed the wagon. Today every smartphone, high-end or midrange, are announced with fingerprint scanning technology.