Flint is a mobile payment service for small businesses that makes it easy to accept credit cards and increase customer engagement. Designed for businesses that operate outside of traditional retail stores, Flint's iOS and Android apps allow users to take credit cards without a card reader – by scanning instead of swiping – or via online invoice payments. To facilitate customer loyalty and referrals, the all-in-one platform also offers digital coupons, customized e-receipts, and a merchant portal for payment tracking, invoice management and more. As a secure Payment Service Provider, Flint also provides instant setup without a merchant account and low transaction fees. Founded in 2011 and based in Redwood City, California, Flint is backed by top-tier Silicon Valley investors and mobile operators.