To download the Mobile Banking application, you must: Have an online banking account. Have a mobile phone that supports downloaded applications. Have a wireless data plan with your mobile service carrier. Register for Mobile Banking and select the downloadable application service. Mobile Banking is optimized for iPhones, Android phones and many tablets. However, some carriers don’t support application downloads to certain types of phones. If you have any problems downloading Mobile Banking, check with your carrier to make sure it is supported on your phone.