Family member view of Apple Card transactions
Is there a way for my husband to view transactions from our joint Apple Card in his Wallet on his iPhone?
If he's the Family Organizer and owner of the shared Apple Card yes, he can see all transactions.
click here ➜ See your Apple Card spending history - Apple Support
If he's a co-owner or participant on your card, he will only be able to see his own transactions, but not anybody else's.
click here ➜ Legal - Apple Card & Privacy - Apple