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 ...

Square recently released an improved, redesigned card reader. Current Square users will need to request a new one.

Today we’re excited to announce Square (NYSE: SQ) Reader SDK, a complete toolkit that enables developers to reimagine the checkout experience for sell ...

Square says its new Reader has a built-in Lightning connector that allows it to work directly with the iPhone 7 and later Apple devices that ditched the headphone jack without needing an adapter.