Global Positioning System - technology that uses satellites to determine your exact location on Earth. Like having a digital compass that always knows exactly where you are.
GPS in your phone helps navigation apps like Google Maps show your location and provide turn-by-turn directions.
GPS (Global Positioning System) is a satellite-based positioning technology, not a cloud service. Cloud providers commonly consume GPS-derived location data in apps (maps, tracking, geofencing) and may combine it with their own location services, but they do not provide GPS itself.