Cash App is a mobile payment service developed by Square, Inc. that allows users to transfer money to one another using a mobile phone app. The service is available in the US and the UK. As of March 21, 2021, the service recorded 36 million active users.
Square launched Square Cash in October 15, 2013.
In March 2015, Square introduced Square Cash for businesses, which includes the ability for individuals, organizations, and business owners to use a unique username to send and receive money, known as a $cashtag.
In January 2018, Cash App expanded to support bitcoin trading.
In November 2020, Square announced it was acquiring Credit Karma Tax, a free do-it-yourself tax-filing service, for $50 million and would make it a part of its Cash App unit.