Square is a mobile payments company founded in 2009 by Jack Dorsey and Jim McKelvey. The company revolutionized mobile payments with its Square Reader, a small device that plugs into the headphone jack of a smartphone or tablet and allows anyone to accept credit card payments. Square also offers Square Cash, a peer-to-peer payments app, and Square Point of Sale, a cloud-based point-of-sale system for small businesses. Square has seen rapid growth over the past several years. In 2014, the company processed $23 billion in payments, up from $6 billion in 2013. In 2015, Square reached a milestone when it processed $50 billion in payments. Square's success is due in part to its focus on simplicity and convenience. The company's products are easy to use and can be accessed from anywhere with an internet connection. Square also offers excellent customer service, with 24/7 support available via phone, email, and chat.

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