“Curated” Doesn’t Necessarily Mean “Secure”
With absolutely no slight intended towards Apple or its App Store Reviewers, it is, in practice, impossible for Apple to guarantee that a user’s data won’t get sent from any application that Apple has approved. In fact, the curated nature of the iOS App Store makes Apple’s approach less secure in many ways, as the tools used to detect the breaches in security on Android would not be approved on the iOD App Store currently, so iPhone users don’t have as simple a way to detect if their phones are sharing their personal information.