Location-based service (LBS) is a general term denoting software services which use geographic data and information to search systems, in turn providing services or information to users. LBS can be used in a variety of contexts, such as health, indoor object search, entertainment, work, personal life, etc. Commonly used examples of location-based services include navigation software, social networking services, location-based advertising, and a tracking system. LBS can also include mobile commerce when taking the form of coupons or advertising directed at customers based on their current location. LBS also includes personalized weather services and even location-based games.

LBS is critical to many businesses as well as government organizations to drive real insight from data tied to a specific location where activities take place. The spatial patterns that vehicle location data and services can provide is one of its most powerful and useful aspects where location is a common denominator in all of these activities and can be leveraged to better understand patterns and relationships. Banking, surveillance, online commerce, and many weapon systems are dependent on LBS.

Access policies are controlled by location data or time-of-day constraints, or a combination thereof. As such, an LBS is an information service and has a number of uses in social networking today as information, in entertainment or security, which is accessible with mobile devices through the mobile network and which uses information on the geographical position of the mobile device.

This concept of location-based systems is not compliant with the standardized concept of real-time locating systems (RTLS) and related local services, as noted in ISO/IEC 19762-5 and ISO/IEC 24730-1. While networked computing devices generally do very well to inform consumers of days old data, the computing devices themselves can also be tracked, even in real-time. LBS privacy issues arise in that context, and are documented below.

Location-based services (LBSs) are widely used in many computer systems and applications. Modern location-based services are made possible by technological developments such as the World Wide Web, satellite navigation systems, and the widespread use of mobile phones.

Location-based services were developed by integrating data from satellite navigation systems, cellular networks, and mobile computing, to provide services based on the geographical locations of users. Over their history, location-based software has evolved from simple synchronization-based service models to authenticated and complex tools for implementing virtually any location-based service model or facility.

There is currently no agreed upon criteria for defining the market size of location-based services, but the European GNSS Agency estimated that 40% of all computer applications used location-based software as of 2013, and 30% of all Internet searches were for locations.

LBS is the ability to open and close specific data objects based on the use of location or time (or both) as controls and triggers or as part of complex cryptographic key or hashing systems and the data they provide access to. Location-based services may be one of the most heavily used application-layer decision framework in computing.