appStoreReceiptURL on mainBundle always returns nil

Question

This method appStoreReceiptURL is the replacement for the deprecated transactionReceipt method on SKPaymentTransaction. And everyone says to just use this call instead:

Answer 1

It's now iOS 8.4 and Xcode 6.4 so maybe history is different, but I find this method call always returns nil when running in the simulator. On a real device it works as documented by Apple: The path to where the app receipt is intended to be stored is returned -- with no guarantee that either there is a receipt there nor that it is a valid receipt.