Mobile credit card payment processing apps for Android include PayPal, Square, SumUp, QuickBooks and Shopify, offering varied fees, hardware and features.

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 ...

Ten years after Square launched its credit card dongle that plugs into a smartphone, Chase is introducing a competing product. More than ten years after Square introduced its infamous credit card ...

Square Inc., which has been promising to expand internationally since it received a $25 million investment from Starbucks Corp., said today it is making its mobile-pay product available in Canada.

Square is one of the best-known credit card processing companies on the market today thanks in part to the Square card reader that allows customers to accept credit cards straight from their mobile ...