Possible Duplicate:
Direct “rate in iTunes” link in my app?
It's possible to let the user rate or write a review from within my app ?, or my only option is to prompt a message asking my user to rate the app ?
In-app purchases can be rated ?
Someone told me that when an app was erased, it was possible to ask the user to ask rate the app, but that feature was removed in IOS4. It's this true ?, the SDK provides me any support to do this kind of stuff ?
thanks !
Lot of apps use Appirater (written by Arash Payan) for Rating. It is extremely customizable and free. You can do lot of customizations by changing settings. eg. Prompt user to rate only if he has had your app for 7 days and has used it at least 5 times.
I have blogged about the same here as well: http://iostipsntricks.wordpress.com/2011/05/10/how-to-get-people-to-rate-your-ios-app/