Tingg helps you convert rates for 173 world currencies!
1. Add list of your favorite currencies and track their changes
2. Dynamically convert from one currency to another
3. Find historical rates for most of the currencies starting from Jan 1, 1999
4. Add your favorites as a widget in the Today View
5. Get daily notifications at your preferred time
And of course, do suggest a feature youd like to see in the future and we shall do our best
Enjoy!