Square POS was founded by Jim McKelvey and Jack Dorsey in 2009, and they released their first app in 2010. It is an aggregator of commercial, financial and mobile payment services. It was sold as a co-selling point of Square, a cloud-based POS alternative that can be used using Android and iOS or sales hardware of Square. The software delivers users with additional tools for the management of marketing, employee, customer loyalty and payroll, for running customer transactions, invoices, inventories and payments. Users can operate all their customers at a single location with Square's customer directory. To create profiles, important customer information is linked directly, and users can look up and sort customers to view the history of transaction or send messages directly from their profiles. Besides, Square provides you with a free online store advancing your inventory with inventory counts.