As iOS developer Ben Sandofsky spotted today, the company has unilaterally decided that if any app offers Google, Facebook, or other third-party ... that sign-in with a biometric Touch ID or ...

You've seen single-sign-on before, even if you don't use it. It's the technology that lets you use your Google or Facebook login to access other third-party services ... Apple ID as a unified ...

and didn’t support any third-party sign-on options. But that’s changing. The social network is now letting you sign in or sign up through your Google and Apple ID. You can use your Google ID ...

Sign in with Apple discloses almost nothing to the app or site you’re connecting with, and it’s doesn’t grant that other party any access to your Apple ID account. (With Twitter and Facebook ...