Just FYI, it seems this app used to be a paid one, but at least for now it's free at MAS. I downloaded it, gave it a very short try, and eventually deleted it, as this app seems to be sluggish compared to ReadKit (the news reader I've been using).
In ReadKit, not only the headlines but the summaries are readily available when you click a news item, but Newsflow seems to load those summaries upon your clicking and so it takes some time.
YMMV, and please give it a try especially if you need a free news reader.
EDIT: Disclaimer: I'm not an affiliate or have any ties with ReadKit except that I'm a register user of it.