Apple has revealed plans to allow developers to respond to customer reviews on both the iOS and Mac App Stores as of the public release of iOS 10.3. The “What’s New in iOS” section of Apple’s Developer Documentation notes that developer responses will be posted “in a way that is available for all customers to see,” presumably allowing developers to counter negative reviews with official explanations.

Little other information is given, such as whether customers will be able to respond in turn to comments from developers, or what other moderation processes may be implemented. Apple also notes a new API being introduced in iOS 10.3 will allow developers to more efficiently handle in-app review requests without having to take the user out of the app and send them to the App Store.
A new option in the iTunes & App Store settings in iOS 10.3 will also allow users to opt out of being prompted for in-app ratings and reviews, although it’s likely this setting will only affect apps that are updated to use the new iOS 10.3 API for requesting reviews.