Cash App is the name of a popular mobile payment service that lets you electronically send money to friends and family using just a smartphone. Cash App is free to use and accepts debit cards, credit cards, and Bitcoin. Here’s a closer look at what Cash App is, how to set it up, and how to send your first payment.

Cash App, formerly known as Square Cash, is a peer-to-peer mobile payment app founded in 2013 by mobile payments platform Square. Cash App lets you send money to anyone using just a phone number, email address, or $Cashtag (a unique Cash App identifier).

Other important things to know about Cash App:

Currently, Cash App does not support payments to international recipients. If you need to send international payments, consider using another payment service.