Siri ( SEE-ree, SIRR-ee) is a digital assistant purchased, developed, and popularized by Apple Inc., which included it in the iOS, iPadOS, watchOS, macOS, tvOS, audioOS, and visionOS operating systems. It uses voice queries, gesture based control, focus-tracking and a natural-language user interface to answer questions, make recommendations, and perform actions by delegating requests to a set of Internet services. With continued use, it adapts to users' individual language usages, searches, and preferences, returning individualized results.
https://en.wikipedia.org/wiki/Siri