News App is an Android AdMob Ready application which gets the news feeds using JSON from websites that have JSON feeds.
Since WordPress 4.7, WP REST API was natively included in WordPress which means you can get the news from all WordPress sites that are with version 4.7 and higher.
News App has 14 individually feeds and 1 LATEST feed which combines the latest news from those 14 feeds. The app saves all feeds to internal database so when there is no internet connection the app shows the feeds from the latest update. The app also supports saving articles in favourites.
It's very easy to remove or add more feeds.
Just follow the documentation to see how to add your own feeds and build the app as per your needs.