Square provide a credit card swipe device and application allowing you to accept physical credit cards. GoMobile Events is integrated with Square* to allow you to take that transaction in Square and convert it to a ticket order.
How does it work?
The Setup Process
To Setup square with your event choose the "Payment Types" selection on the event page then check "Square". To connect your Square account to your GoMobile Events account click the Connect button:
You will need to enter your Square credentials then you will be returned back to GoMobile Events
*Square does not directly let you access their device however they do provide an API to the transactions made using Square.