Because Apple was forced to roll out iOS 11.2 early, it's got no other choice but to also activate Apply Pay Cash for users, finally allowing them to make peer-to-peer payments via Apple Pay. They can use the debit and credit cards they already have added to Apple Pay, so there's no need to install an app or create yet another account.
Through Wallet, Apple Pay Cash lets you pay in apps and in stores that use the service's virtual debit card, and Siri can also be used to send and request payments with contacts.
Apple has finally included the Apple Pay Cash support for Apple Watch via latest software update (watchOS 4.2). There you can access the Apple Pay icon.
After the setup process, you can transfer money for free.
Not to forget that Apple Cash has gone live for iPhones through the iOS 11.2.
Although the product is rolled out as a person to person solution, I have to imagine that Apple is just fine having users store their money with them (though their bank partner GoBank) and then use those balances to shop with their app.
Those delays-presumably coupled with lagging demand for the iPhone 8 by users anxious to pick up Apple's latest phone-enabled Android to increase its market share by 4.3% in the five biggest European markets, 8.2% in the United States and 7.5% in Japan during the three months ending October 2017. In a 7-day timeframe, users can add up to $10,000. Each person to person payment and purchase made with Apple Pay Cash is authenticated with Face ID on iPhone X, Touch ID on other iPhone and iPad models or a secure passcode on Apple Watch. You can not add more than $10,000 over a 7-day period.
After this is completed, the Apple Pay button at the bottom of a conversation in Messages is seen.