Square's credit card reader is free and can be used with the Square Point of Sale app. This allows everyone to accept payments on their tablet or smartphone. We'll mail your card reader to you when you sign up for Square. There are no long-term commitments. 2.6% + 10C/ per swipe Visa, Mastercards, Discover, American Express and American Express. You will receive your money within the next business day. You have two versions of Square Reader magstripe, one for a headset jack and the other for a Lightning connector. Pick the credit card reader that suits you best. Pay at the counter, on the move, remotely via invoices or manually by entering card numbers. Square Point of Sale is an easy-to-use, free app that allows you to manage your business. At the time of swipe, credit card information is encrypted. Square does not store your card data after a payment has been made.