Apple Pay may be making waves at major retailers, but Square Register continues to be the go-to source for small businesses looking to take payments from customers. With point-of-sale interfaces and a ...

In 2009, when Square unveiled its original credit-card reader, one meaningful fact about it was the connector it used. The tiny white doohickey commandeered a smartphone’s headphone jack as means of ...

Square is opening up its payment processing tools to developers for the first time now thanks to its new Square Reader SDK. Square’s new software development kit lets third-party apps integrate with ...