Using the new Apple authentication provider, your customers can log in to a Salesforce org or community with their Apple ID.
Where: This change applies to Lightning Experience and Salesforce Classic in Enterprise, Performance, Unlimited, and Developer editions.
How: To let users log in with their Apple ID, create an Apple authentication provider from the Salesforce Auth. Providers Setup page. After configuring the authentication provider and adding the Apple sign-in button to your Salesforce and Communities login pages, users can log in with their Apple credentials.