Can I apply to an Apple Card without a SSN?

I don't think so. I believe the SSN is required by Goldman Sachs Bank in order to review your credit information. Apple does not review your credit history for card approval, this is only done by Goldman Sachs. Although similar to the SSN number, you may be able to use an ITIN number provided by the IRS instead. Some banks will issue a credit card without a SSN number, but I do not think GS is one of them.

That previous question can be found here:

https://discussions.apple.com/thread/252862077?sortBy=best

You’ll want to review these Apple Support articles that I’ve linked below. If you have had your other accounts for at least a year, you are certainly doing things right.

How your Apple Card application is evaluated - Apple Support

How to apply for Apple Card - Apple Support

Please note that a Social Security number is not mentioned in the eligibility requirements. However, in my experience you may very likely be asked for a State issued DL or a ID.

Do you have a state issued drivers license or state ID?