Cash app login to contact Cash App support. To keep your account secure, we'll send you a code to Cash app log in. New to Cash App? Create account. Mobile number. if you are using Cash App already, then you might already know that Cash App does not work on the password.If you are seeing this particular error message on your screen when you try to sign into your account, then this means your device is not compatible with using Cash App. https://sites.google.com/walletslog.com/cashapp-login/home