What if I wanted to make a sort of “layaway” app? following the same guidelines of the revenueCat tutorial but where the users can pay a custom amount determined by them toward a particular product Until it’s paid off ?
Welcome to the community!
Working with financial numbers is a fairly advanced topic. For example, Swift floats and Doubles are not precise enough. You need to use NSDecimalNumber or NSDecimal instead.
I pulled my app from the App store that was a simple loan tracking app as it was hard to support some use cases folks were having with it.
Unless you are really comfortable with iOS development and accounting principles, you may want to try another project for now.