Tap Activate on the ‌Apple Card‌ sheet that appears on your ‌iPhone‌'s screen. Now that your ‌Apple Card‌ is activated you can use it everywhere that Mastercard is accepted.

If you own an ‌iPhone‌ X or earlier, follow these steps to activate your titanium ‌Apple Card‌. Launch the Wallet app on your ‌iPhone‌. Tap Apple Card.