Ranked in these QuestionsQuestion Ranking
Pro Built-in text-to-speech
The app can read the news stories out lout to you.
Pro Has a lockscreen widget
The widget allows checking the news without having to unlock the phone.
Pro Integrates with third-party RSS services and works as a standalone RSS reader
While the app can integrate with third-party RSS services, like Feedly and The Old Reader, it can be used as a standalone RSS reader as well.
Pro Integrates with multiple read it later services
gReader integrates with Pocket, Instapaper and Readability.
Con Free version has very basic widget support
The free version includes just the icon widget, other widgets can be accessed with the pro version which costs $4.69.