The OTHERAppStoreUpdateChecker class provides a method that uses the iTunes App Store API to check if a version of the app with a different version number is available in the App Store.
Example:
[OTHERAppStoreUpdateChecker checkForUpdatesWithAppleID:@"123456789" completionBlock:^(BOOL updateAvailable, NSDictionary *results, NSError *error) {
if (error == nil && updateAvailable) {
NSString *newVersionNumber = [results objectForKey:OTHERAppStoreUpdateCheckerVersionKey];
NSString *whatsNew = [results objectForKey:OTHERAppStoreUpdateCheckerWhatsNewKey];
NSString *appStoreURL = [results objectForKey:OTHERAppStoreUpdateCheckerAppStoreURLKey];
}
}];