You can now use your Flint app for the iPhone to process American Express and Discover card payments in addition to Visa and MasterCard. The free app lets you accept credit card payments on your Apple smartphone.
The transaction fees to process AMEX and Discover cards are the same as Visa and Mastercard. Plus, accepting all major credit types brings you more flexibility and sales. Per transaction fees are 1.95% for debit cards and 2.95% for credit cards, same for card scan, manual entry, invoices or online payments.
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