Cash Calculator iPhone

Hello I need an application that can count change. This would be used to count money in a cash drawer for a retail store. I would like 2 options, one for Canada and one for US dollars. The app needs to work with iPhone. Its a basic structure, 3 windows at most. An opening screen to select the type of currency. Then one screen for each type. We need the following fields to enter cash: Canada: Penny, Nickel, Dime, Quarter, Loonie, Toonie, Five, Ten, Twenty, Fifty. Hundred, Other. USD: Penny, Nickel, Dime, Quarter, Dollar, Five, Ten, Twenty, Fifty, Hundred, Other. It would also be good to have a second option after calculating the total, allowing the user to enter a Float amount, then being able to deduct that number from the total.