Siri wasn’t always baked into iOS. It started out as a standalone iPhone app that launched in the App Store almost three years ago. Three weeks after it went live to the public, Apple showed interest. Siri was bought by Apple a few weeks later for hundreds of millions of dollars. The personal assistant was then reborn in the iPhone 4S in October 2011.
Many don’t know the fascinating history behind Siri, like the fact that it started as a research project for the U.S. Defense Department, or that Steve Jobs personally spearheaded the acquisition. Apple is lucky it swept in when it did, because Siri was almost made a default app on Android.