CurCon Currency Converter
Cost: 99 cents
If converting exchange rates in your head has you constantly misplacing decimal points, let this application take away the guesswork. Under the settings tab, choose from three layouts. The first is a simple converter that gives the direct currency-to-currency exchange value using easy-to-thumb-through dials. The second is similar to the first, but you choose the currency before seeing the rates. The third allows you to create a customizable list of currencies to compare multiple rates at one time.