I have gone through all the links prompted when I was about to post this question. also this, Is there a way to check if a user has rated your app on the app store?
I want to know if there is any way by which i can know if actually my app has been rated by the user. P.S: I have used appirater to implement prompt on required event.. which is working properly. Thanx in advance
You could have a look at AppReviews which queries the app store for reviews. However be aware that Apple regard these as private APIs, so they may not allow you to query them in an app.
来源：https://stackoverflow.com/questions/14933740/check-if-app-is-rated-in-app-store