Cash App is a mobile payment service developed by Square, Inc. It allows users to send and receive money using a mobile app. Users can link their bank accounts or debit cards to the app, and then use it to transfer money to other users. Cash App is popular for its simplicity and ease of use, making it a convenient tool for peer-to-peer transactions.

In addition to peer-to-peer money transfers, Cash App also offers a Cash Card, which is a customizable debit card that users can use to make purchases and withdraw cash from ATMs. The app also provides features like direct deposit, Bitcoin trading, and the ability to buy stocks.It's important to note that services and features may evolve, so it's a good idea to check the official Cash App website or app for the most up-to-date information on its offerings and functionalities. Additionally, be cautious about sharing personal information and financial details online, and only use trusted and secure platforms for financial transactions.