The Square app and credit card reader is ideal for any small business.

Combined with Square’s app and payment-processing service, which charged a flat rate per transaction, the reader let even the smallest of small businesses easily take plastic for the first time.

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 ...

In fact even if the tampered reader won’t work with the Square app anymore, it can still be used to scam customers.

A new Square Reader appears to be on the horizon, capable of letting users tap to pay directly on the device itself.

The Square payment processing system is a good option if you’re looking for a simple app and service; the card reader is poorly designed, though, and inventory features are available only on ...

Cash App, Square outage: What small businesses need to know Small businesses, from taco trucks to coffee shops, had to tell their customers they couldn't accept credit cards or e-payments.

The new, free Square Register app allows brick-and-mortar retailers to handle all the tasks they typically would with a traditional register.

Square Reader has launched in Australia allowing merchants to accept credit and debit card payments from their iOS and Android smartphone or tablet.

The Square App December 16, 2011 / 1:39 AM EST / CBS Philadelphia PHILADELPHIA (CBS) - On today's APP-tastic and outta SITE -- ideal for any small business, it's the Square app and credit card reader.