Hello, schumanfu.

I understand how convenient it is to manage your transactions, especially if your Apple card is linked to QuickBooks Self-Employed. 

As of now, we're still unable to connect an Apple card in QuickBooks Self-Employed (QBSE). You can, however, request a connection from Apple card to QBSE.

Like this:

1. Click the profile ⚙ icon, then select Connect bank.
2. Search for the name of your financial institution. If QuickBooks is unable to find your bank, you will get the message, "Hmm, we can’t find [name of the bank you entered] in our list of supported banks," and you will be presented with helpful tips to try and locate your bank account.
3. Choose Request to add your bank.
4. Enter your bank's web address (URL) in the field provided and then hit Request.

In the meantime, we can use this article as a reference to manually upload transactions into QBSE as an alternative: Manually import transactions into QuickBooks Self-Employed.

I've also added this link to guide you in categorizing those transactions in QBSE: Categorize transactions in QuickBooks Self-Employed

Let me know if you need further assistance or have any follow-up questions about banking. I'll be here to help.