Plug Square credit-card reader gizmo into your Android smartphone or iOS device (iPhone, iPod Touch, and iPad) and you are ready to accept credit-card payments anytime, anywhere! The Square app is available for free download.
People love the fact that the reader plugs into the headphone jack on your iOS or Android device; it's not some bulky custom case the works only with select models. You pay only a small percentage of each transaction. No monthly or annual fees. The company charges 2.75 percent per swipe for Visa, Mastercard, Discover, and American Express.
The card reader has a suggested retail price of $9.95 with a $10 rebate upon signup for new users and can now be purchased at many stores (Apple, Best Buy, OfficeMax, Radio Shack, Target, UPS, Wal-Mart, Walgreens, Staples, and FedEx stores) across the U.S.