Quartz:

In the roughly four years since Apple launched its mobile payments service, Apple Pay, the company has managed to convince just about every major bank and retailer to let customers use their bank accounts to pay for things quickly through iPhones and Apple Watches.

While there’s no way of knowing exactly how popular Apple Pay is with consumers—the company doesn’t break out user numbers or revenue it receives from those transactions—the ever-increasing number of retailers using the service suggests it’s growing in popularity.

The gadget guy in me loves Apple Pay and wishes I could use it more. My wife thinks it’s black magic and is deeply suspicious of it.