Don’t let anyway talk you into using Square. CC info isn’t properly encrypted so if someone suffers identity theft you could be out thousands of dollars.
Here’s the real deal regarding “The Square” mobile credit card acceptance. They are an aggregater so be prepared to wait for your funds and no customer service and zero help with chargebacks. There are much better options. http://www.cbsnews.com/8301-504803_162-57574759-10391709/twitter-creator-the-importance-of-tweeting-mom/