http://www.macnn.com/articles/08/11/14/allcalc.for.iphone.ipod/
AllCalc merges multiple calculators for iPhone/iPod
updated 11:00 am EST, Fri November 14, 2008
AllCalc for iPhone/iPod
Bayhoff Software has published AllCalc 1.0, a calculator app for the iPhone and iPod touch. The software differs from most other calculators on Apple handhelds by gathering several different functions into one location. In the case of AllCalc, these include tips, wage, sales tax, sales price, amortized mortgage and BMI (body mass index) options.
The app is also said to support some 45 varieties of unit conversion, whether between imperial and metric systems or categories such as area, length, mass, time and volume. AllCalc is being sold through the App Store, where it costs $5.
