Currency is basically like a stock ticker for all the worlds currency. It allows you to view the current value of any currency in the world and compare it to any master currency you would like. The style is very much like the iPhone Stocks app in how it displays the information. And for anyone who enjoys keeping an eye on the currency exchange rates, this app updates whenever you open it.
The app itself isn't very complex. When you open it up for the first time you'll see several values for different currencies. It will also default to U.S. Dollars as the master currency. That means that all of those figures listed on there are what you would get for exchanging one U.S. Dollar into that for of currency.
These settings are easily changed though. All you have to do is press the info icon. From there you can move around or remove any of the preset currencies. You can also add additional currencies to the list as well. The app has all the information for every currency it would seem, so you won't be missing anything. At the very bottom you can also change the Master currency, which shifts all of the information on the main page.
As the iPhone is a very savvy piece of equipment and is available in multiple different countries, having an app like this available is definitely a plus. For anyone who would find themselves exchanging money or even Forex traders with an iPhone, this is definitely a must have app.