Howdy. Thank you for joining the Auth0 Community. I consulted with our architecture team to get you an answer 
Are you currently using Auth0 as part of your authentication strategy?
When just using Sign in with Apple, you are only issued ID Tokens that are short lived without a good way to refresh them.
When using SIWA with Auth0, you would get an Access Token and a Refresh Token. You can then use the Refresh token to refresh the other tokens.