This Mobile Web SDK is a client library to access the Square Point of Sale API. It provides a way to open the Square Point of Sale application from a custom mobile web application to process in-person payments using Square hardware. The Point of Sale API allows you to build customized point-of-sale solutions or other applications that require payments that includes support for native and web apps on iOS and Android to process in-person payments using Square hardware. Square enables developers with the ability to build customized solutions that accept payments online, in-person, or in-app. Square provides services to manage products and customers, that support products and tools to manage finances.