Q: I’m using a Square credit card reader that attaches to my smartphone, but I’m finding that the transactions don’t always go through properly. Is there a certain smartphone or cellular service ...

Square is a payment processing platform with built-in POS and business management tools for in-person and online sales. Here’s how it works, what it costs, and its ideal use cases. Key takeaways ...

Cabbie David Mendoza reached for his iPhone and plugged in a spiffy Square Reader to process a ride's fare. "When customers see it, they either say 'What is that cool device?' or 'Hey, that's Square,' ...

I always see Square terminals whenever I’m shopping at stores or cafes, and that’s because Square offers seven kinds of ...

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 ...

The best credit card readers for iPhones are: The statement “iPhones are popular products” might be a bit of a truism, but there is at least one not-so-obvious implication with some value. Popular ...

Square credit card readers are in thousands of stores and restaurants, but the company realizes there are industries where its software isn’t appropriate. That’s why today it introduced the Square ...

Square says the new portable card reader is ‘one of the thinnest and lightest’ POS devices on the market. Square says the new portable card reader is ‘one of the thinnest and lightest’ POS devices on ...