PayPal unveiled its new PayPal Here, a small business mobile payment system. First shown on Thursday, it’s a combination of a free mobile app and thumb-sized card reader, putting a PayPal cash register in the pocket of anybody who wants one.

PayPal’s triangular dongle for accepting swiped credit card transactions fits in the headphone jack of any iPhone or Android handset. Its front slides down slightly to “lock” the reader in place — a characteristic PayPal feels is an advantage over Square, its cube-shaped counterpart.

While the ability to swipe cards is certainly a standout feature, the PayPal Here app is also capable of accepting check and credit card purchases by capturing photos of the check or card in question, and the app can also be used to keep track of cash transactions. If your business is one that bills customers, then the app also has a sleek interface for creating invoices that can be sent to customers via email and paid using a PayPal account or any credit card. In addition to offering merchants a new option for accepting payments, PayPal also announced an updated version of its consumer mobile app Thursday. The updated app allows you to find local businesses that accept PayPal payments, check-in at a business.

Integrated with PayPal Here, merchants will be able to see a photo of you and your name in the PayPal Here app, and can charge your purchases by tapping your picture. The entire process is simple and straightforward, with the best part being that merchants are using the same app to take PayPal payments as they are cash, check, and credit card transactions — it all works together.