How to open an account at Cash App and E-Trade Cash App Users can also open a Cash App Investing account from Cash App, the mobile payment service, for stock trading.

Amid a growing number of banking apps aimed at teens, Square Inc.’s Cash App today is broadening its reach by making its payments app available to younger teens between the ages of 13 and 17 ...

Cash App opens up to Apple Pay and Google Pay for the first time The launch comes as Cash App races to regain momentum in a high-stakes rivalry with Venmo.