Square

Square is a payment processor that provides point-of-sale systems for businesses. It enables sellers to accept card payments through both physical devices and cloud-based software. Square offers virtual terminals and point of sale terminals for in-person payments and financial services supporting business operations, including e-commerce, inventory management, customer appointments, payroll processing, and business loans. Square offers negotiable pricing and custom fees depending on the merchant's revenue.

The company's flagship product, Square Reader, enables merchants to accept credit card payments through a mobile device. Initially designed to connect via the phone's audio jack, the device has evolved to support Apple Lightning and Bluetooth connectivity.

The company provides its basic card readers at no cost, with additional hardware like Square Stand and chip-based readers available for purchase. The product lineup includes several point-of-sale solutions. Square Terminal is a standalone device with a display that prints receipts and accepts multiple payment types without requiring a separate phone or tablet. Square Stand transforms an iPad into a comprehensive point-of-sale system, while Square Register offers a more advanced setup with merchant and customer tablets.

Beyond payment processing, Square provides a range of business services. These include e-commerce and inventory management, payroll processing, gift card systems, online payment acceptance through Square Market, and banking services via Square Capital. The platform also offers an online booking tool for appointment management and allows merchants to develop custom interfaces through an application programming interface.