In Aug. More milestone for Square Jack Dorsey, the founder of the app, revealed a couple of months ago that bitcoin transactions have been the biggest moneymaker for the service, accounting for nearly half the money generated by the Cash App. Read more. P2P payment apps allow consumers to use their smartphones to pay for goods and services, pay bills, and transfer money to friends and family. In a world where the smartphones are ubiquitous and nothing seems more important than convenience, consumers are increasingly looking to digital wallets. Previously, fees were included in the spread or the markup on the market price. Dec 24, Tuesday.