My first iPhone application is on App Store!
Its name is INTEREST CALCULATOR!
Here is the description, directly from Apple Store:
Interest Calculator is exactly what it claims to be: an application for your iPhone/iPod touch, to calculate interest, and useful for helping you about your investments and your business.
It can be useful when you must take decisions about credit (for example, to buy a car) and you want to know the convenience.
It's usage is simple and fast, and it can calculate Simple and Compound Interest.
Calculation can be made using dollars or euros, with a year of 365 or 360 days (commercial). You can choose these parameters using "Settings".
Available languages: English & Italian
Here is the download link: iTunes link