Which objective-c type is appropriate for handling money?

Which objective-c type is appropriate for handling money? I need something which is Core Data compatible.

What can I use for money in c#?

The best datatype to use for currency in C# is decimal. The decimal type is a 128-bit data type suitable for financial and monetary calculations. The decimal type can represent values ranging from 1.0 * 10^-28 to approximately 7.9 * 10^28 with 28-29 significant digits.

There are two solutions:

Use an int, and always keep track of monetary values in cents (or the smallest possible division of whatever currency you're using). Use only integer calculations.
Use NSDecimalNumber, which does exact decimal arithmetic.

Solution #1 requires you to convert between cents and dollars whenever you do input or output of monetary values, whereas solution #2 can be messier to code (e.g. you have to write something like [num1 decimalNumberByAdding:num2] instead of num1 + num2 to add two numbers).

I'd recommend solution #1, but go with whichever of those you think would work best.