View category wise XML feeds with links of respective categories The default feed in WordPress does not allow you to display an RSS feed link for categories. The plugin – Category based XML feed, provides RSS/XML feed per category to your readers.
The link displayed is – http://example.com/?rss=category
All posts in WordPress are sorted by categories. The plugin can be used to show xml posts by category Using the XML parser you can parse RSS to get all data of the feed including Title, description, images and full page details for post
It can be used by iOS and Android App frameworks to import data to app. And used by Apps like Native Android/iOS App for WordPress http://codecanyon.net/item/native-android-app-for-wordpress-site/5767443