Sure, Apple was quick to tout a surge of Apple Pay registrations, but how often are people actually using the iPhone-focused payment service? A fair amount, apparently. Whole Foods tells the New York Times that it racked up 150,000 transactions in the three weeks after Apple Pay became available. That's not a lot in the grander scheme of things (just 7,143 payments per day), but it's significant for a single store and a brand new service with limited device support. Other shops aren't quite so forthcoming with stats, although they suggest that there has also been an uptick. Walgreens says its mobile payments have doubled, while McDonald's says that Apple Pay now makes up half of its tap-to-pay purchases.