Mobile credit card payment processing apps for Android include PayPal, Square, SumUp, QuickBooks and Shopify, offering varied fees, hardware and features.

Editorial Note: Talk Android may contain affiliate links on some articles. If you make a purchase through these links, we will earn a commission at no extra cost to you. Learn more. Our phones are our ...

Expertise from Forbes Councils members, operated under license. Opinions expressed are those of the author. At first glance, paying with a mobile wallet seems almost too simple: You tap your phone, ...