Código para que valoren tu aplicación.
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:
@”http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewContentsUserReviews?type=Purple+Software&id=YOUR_APP_ID&mt=8″
]];
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:
@”http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewContentsUserReviews?type=Purple+Software&id=YOUR_APP_ID&mt=8″
]];