Square cash App is a peer to peer mobile payment service which is formerly known as square cash. cash App is a user-friendly payment method. Now cash App is lies among top payment transfer services with 7 million customers. Cash App has become efficient replacement of cash. Cash App review is satisfactory among its users. Cash App users send money to receivers just by using $cashtag. $cashtag is a unique username assigned to a cash App user. In order to send money, cash app user just has to type cash tag of the other user to whom money is to send and then type the amount and just like that money is sent to the receiver. cash App customer services are free of cost for personal transactions and charges a little amount for business transactions.