The best I have used

I have used other apps to convert currency and have had to resort to web sites like Bloomberg to get the correct daily exchange rate. This app does it for me. It stays current, has all the major currencies and is easy to use. You can make a list on the left of all your most frequently used currencies and it will save them for future use. You can add or erase ones you want at the touch of the screen. When you are calculating a currency rate you can switch back and forth between the two with one button.
Love it and highly recommend it!

pennyswings about My Currency Converter Pro, v3.2.4