You say nothing is free, but Amazon, Discord, Dropbox, Facebook, GitHub, Google, Instagram, Microsoft, Paypal, Reddit, Slack, Steam, TikTok, Twitter etc all offer it for free.
Plus, it's not for the dev, it's for the users of the website.
Plus, it's not for the dev, it's for the users of the website.
https://www.apple.com/legal/privacy/data/en/sign-in-with-app...
>When you use Sign in with Apple on Safari, Apple sees when you sign in to a website so that Apple can authenticate your sign in, but Apple does not retain a history of what websites you sign in to or when you use Sign in with Apple.