Start banking wherever you are with SNB of SD Mobile for iPhone! Available to all online banking customers of Security National Bank of South Dakota, SNB of SD Mobile allows you to check balances and recent transactions, transfer funds and pay bills, all from your phone. Available features include: Accounts - Check your latest account balance and search recent transactions by date, amount or check number. Bill Pay - Pay new bills, revise bills scheduled to be paid, and review previously paid bills.Transfers - Easily transfer cash between your accounts. Locations- Find nearby branches and ATMs using the iPhones built-in GPS. Additionally, you can search by zip code or address.