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Square made payment processing accessible to small businesses by offering transparent pricing and hardware that works seamlessly with smartphones and tablets. The platform eliminates traditional barriers to accepting card payments, allowing anyone with a mobile device to start accepting payments immediately. Square's point-of-sale system provides inventory management, employee management, and analytics that help small businesses operate more efficiently. The platform's ecosystem extends beyond payments to include payroll services, appointment scheduling, customer engagement tools, and business financing. Square excels in retail and service businesses where transactions happen in-person and online, providing unified commerce solutions that track sales across all channels. The platform's simplicity and transparent pricing have made it particularly popular among small businesses, restaurants, and service providers who want professional payment capabilities without complex contracts or hidden fees.

WePay is a multi-party payments API for SMB SaaS, POS Platforms, and Online Marketplaces. It was acquired by JPMorgan Chase in 2018.