This is what you want-a no-frills currency converter that's super easy to use.Retina display support!
Simultaneously converts between 159 world currencies
Automatically updates to the latest rates every 15 minutes
Option to put the app icon in the status bar
Option for auto-start at login
Restores OS X 10.7 Lion compatibility.
Simple Currency Converter (org.iphonesg.zscurrencyconverter) is a Mac software application that has been discovered and submitted by users of Software.com.
Default Install Path: /Applications/Simple Currency Converter.app
Minimum OS version: 10.7