Your website is pretty good as is; works well on the phone. Not sure why would I install an app. I particularly like the fact that some of the pay walled stories open up fine within your site (not sure for how long you'd be able to do this - minus the WSJ). The only missing piece sometimes, is the name of the author, if it is an opinion piece.
Note that the default settings of PrivacyBadger breaks your app by not letting load anything outside of the Home feed (clicking on the other feeds just refreshed the Home feed).