Groupon tests new service, enters mobile payment battlefield ยป
Groupon has begun testing a mobile credit card reader, encroaching on a domain innovated by Square that PayPal has also recently entered. […] The Groupon payment platform will charge a 1.8% transaction fee along with a 15-cent transaction charge. At that rate, the fee is less than Square’s 2.75% or the 2.7% charged by PayPal Here and Verifone SAIL, another player in the market. However, Groupon’s competitors don’t have a transaction fee.