Informatica Amazon’s new mobile card reader waltzes onto Square and PayPal’s dance floor 15 Agosto 2014 admin Amazon just announced its new Local Register service, a mobile card reader and app that allows merchants to swipe cards and take payments without a traditional card reader. The service is akin to those from Square and PayPal, which both use a physical card reader that plugs into a phone or tablet’s headphone jack and lets customers swipe magnetic stripe cards.