PayPal and Venmo iOS apps soon to be able to accept payments directly on the phone with Tap to Pay support.
Leveraging Apple's Tap to Pay on iPhone technology, U.S. merchant customers will soon be able to accept contactless debit or credit cards and mobile wallets, including Apple Pay, using an iPhone and the PayPal or Venmo iOS app.
PayPal
Also PayPal is adding Apple Pay support for online payments to their app.
Reference: Apple Tap to Pay Integration Coming to PayPal and Venmo iOS Apps