Unfortunately, connecting a bank account is just one of the features that are not yet fully functional in the application. In addition, to add a bank via PayPal to cash app via your mobile device, follow these steps: Open the PayPal app. Log in with your PayPal account. Consequently, Tap "Settings", the wheel icon in the upper right corner of the app. Select "Bank accounts and credit cards". Tap the + icon. Select "Bank account". On the other hand, you must "Visit our website" for more help.