CALC 1 Calculator for iPhone and iPad.
CALC 1 now includes both a HP 12C
CALC 1 Financial Calculator
CALC 1 give users clean reproductions of the 12C and 10bII that they will feel comfortable with immediately.
Since CALC 1 contains so many tools, we did not need to add anything to the reproductions. We just share the stack, TVM values and some storage registers so the user can switch between the reproductions and the many CALC 1 tools.
CALC 1 Customizable Calculator
The best calculator for you is one that you can easily customize to save time and reduce mistakes.
The customizable version has all of the features of the financial version plus customization tools.