Mint
Itunes App Store
Mint is one of the best personal finance apps around, and can keep track of all of your personal finances. This includes all bank accounts, bills, 401k, etc. The app actually looks for trends in your spending, seeking to help you properly budget your money efficiently.
Mxiit says
Rally have to checkout GasBuddy. Took Lots of time to read, but its worth it
Moss9ja