iPhone - Distributing in-app purchases app

I want to integrate in-app purchases in my application. I want to distribute the app free of cost. I'll provide options inside the app to make in-app purchases. Can I distribute my application free of cost or do I've to sell my applicat开发者_开发知识库ion for some initial price?

You are allowed to distribute your app free of cost, check the iOS developer terms of use for the details.