Replying to your App reviews is not only important for your business but it's also easy to do.
Follow these simple steps to access your App Reviews so you can reply publicly to your mobile app users:
1. Sign in to you iTunes Connect account;
2. Select My Apps;
3. Select the relevant app;
4. Select the Activity tab;
5. Select Ratings and Reviews;
6. Select Reply for the review your wish to reply to;
7. Enter your reply in the text box;
8. Select Submit.
You can respond to all reviews of your app, regardless of when they were written. When you respond, the reviewer is notified and has the option to update their review. You can edit your response at any time, and only the latest version of your response will be shown.
For more information about Ratings, Reviews and Responses, view this information from Apple.