https://thenextweb.com/apple/2019/06/03/apple-introduces-privacy-focused-sign-in-with-apple-button-for-sites-and-apps/ > Apple addressed privacy problems by calling out trackers around the world at its WWDC developer conference. To address that, the company introduced a new sign in method: Sign in with Apple. > Just like ‘login with Google’ and ‘login with Facebook,’ you can sign in into an app by ‘login with Apple‘ button. It uses FaceID for authentication, and creates a new account if you don’t have any.