Calc Board Web App gives you the calculating power you need on your iPhone.
Requirements: For Mac OS X 10.5 or higher
Edit By BS Editor: Calc Board Web App gives you the calculating power you need on your iPhone or iPod touch. An integrated Download button lets you use the app even when you are not connected to the internet.
Enjoy the following features in both the Widget and the Web App:
Simple maths operations in a single, editable line
63 Pre-defined constants
Complex numbers supported by any operation and any function