NipCalc is a Scientific Calculator with simple interface which is done by showing the different set of Operations in different style. It also has the feature of displaying the current date and time. The objective is to make the user feel easier when they use calculator in Palm OS. Features: Different display for unary and Binary operations to avoid confusion. For eg., ~ will be displayed for Unary minus in the input screen. Checkboxes like Deg,Inv and Hyp for the calculations on [sin,cos,tan values in degrees],[arcsin,arccos,arctan]and [sinh,cosh,tanh] operations respectively New Features such as ceil(CL in screen),floor(FL in screen),date and time display are also added as an extra feature.