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 ...

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 ...

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 ...