When a gadget company sells its products for big bucks, it has every reason to refine its designs on an ongoing basis, making them ever more tempting to paying customers. But if the gizmo in question ...

About 95 percent of the coffee shops and stores I frequent in the Phoenix area use a Square reader or terminal to process payments, and virtually none of them support Apple Pay. That could soon change ...

Square, the payments company that makes it easy for small businesses to accept credit card payments wherever you go, is finally catching up with the times today by updating its tiny card reader.

It’s rare for any startup to have as symbiotic a relationship with a single hardware device as Square has had with its credit-card reader. The original version, which debuted in 2009, democratized ...