For business that want to accept credit card payments through their smartphones, there are quite a few choices available. Two leading contenders are Square and Intuit’s GoPayment. Both services offer this feature, but there are some differences that may sway your decision on which one is best for you.
For example, GoPayment requires a credit check, square does not. Intuit’s free reader supports the iPhone, and Square currently supports only Android or IOS devices.
Business Insider provides a good side-to-side comparison chart of these two services.
More information: Business Insider.