Apple Pay is Apple’s digital wallet. It lets people pay on a website, in an app or in a physical shop using the card already stored on their iPhone, iPad, Apple Watch or Mac, confirmed with a face scan, fingerprint or side-button press. No card number is typed, and no form is filled in by hand.
Picture the express lane at a supermarket. Instead of unloading a full trolley onto the belt, you wave one item and walk out. Apple Pay is that express lane for online buying: the customer’s name, card and shipping details are already saved on their device, so a two-minute checkout shrinks to a couple of seconds. On a busy store this directly lifts the share of visitors who actually complete a purchase, especially on mobile. It works much like Google Pay does on Android, and both sit on top of your normal payment service provider.
Behind the scenes the shop never receives the real card number. Apple replaces it with a one-time token tied to that specific device, which is why it is hard to misuse even if data is intercepted.
There is a catch worth knowing. Apple Pay only shows up for people on Apple devices using Safari, so it is an addition to your payment mix, not a replacement. A Dutch shop will still want iDEAL for everyone on Android or Windows, and the button only appears once your domain is verified. Skip that one step in the checkout setup and the option silently never shows.
At TopDevs we switch on Apple Pay during checkout builds because removing typing is one of the most reliable ways to recover sales that would otherwise be abandoned on a phone.