Location-based services (LBS) are applications that use a device's geographical location to provide relevant information or services to users. These services often rely on technologies like GPS, Wi-Fi, or cellular data to determine where a user is situated. Common examples include navigation apps, local restaurant finders, and ride-sharing services. LBS can enhance user experiences by delivering personalized content based on their current location. For instance, a user searching for restaurants may receive recommendations that are nearby, while a traveler might find tourist attractions relevant to their current city. This technology is widely used in smartphones and other mobile devices.