QuiteRSS adds all your RSS links, without limitations; you can export and import your sources from wherever you want, and update them when you open the reader or at set intervals. This application lets you filter your favorites and unread links, and tag news into different categories.
Since it has an integrated browser, reading your feeds is visually smooth; you can adjust the space of the preview as desired, activating or deactivating the images that accompany the news.
Besides configuring the proxy server manually or automatically, QuiteRSS shows you the new and unread feeds counters on the application's icon, so you'll never miss the news on your RSS.
Requires an Internet connection.