Apple Pay can buy a token directly on the mobile app. Tap Deposit on the Home tab, or the plus button on your Cash balance on the Portfolio tab, then tap Apple Pay. You will see a list of tokens available for purchase.
Select a token, enter the amount, and authorize the payment.
The Apple Pay tile shows on iPhone when the purchase is available to your account. The Deposit screen shows the methods available to you.
To add USDC to your cash balance with Apple Pay instead of buying one token, tap Debit on the Deposit screen. The Deposit cash screen opens with Apple Pay selected when it is available to your account. The steps are in https://help.fomo.family/en/articles/18030364-depositing-with-apple-pay.