Flint Mobile is a payment service provider that allows small businesses to easily accept credit cards and increase customer engagement. The iOS and Android apps allow users to take credit cards without a card reader, via scanning or online invoice payments. The platform also offers digital coupons, customized e-receipts, and a merchant portal for payment tracking and invoice management. Flint provides instant setup without a merchant account and low transaction fees, and all transactions are automatically synced with QuickBooks accounts.