>>> Apple’s contactless payment and iMessage systems pair up in iOS 11, enabling you to send money to friends, family, or colleagues right from your conversations with them.
Let’s say you’re talking with a friend about booking cinema tickets. They use an app to purchase the tickets and send you an iMessage to let you know how much you owe them. You then tap the Apple Pay icon in Messages’ app drawer (or the Apple Pay suggestion that appears above the keyboard), confirm that the amount the app has picked out of the message is correct, then place your fingerprint on your device’s Touch ID sensor. Money received is held on an Apple Pay card in the Wallet app; you can either keep it there to fund future payments using Apple Pay (in a retail store or online), send it on to another person, or transfer it to your bank.