In secondary development
BEWARE:
Google added some restrictions to news app and I don't see how Flym (and other RSS aggregators) could comply to that. For instance, Flym cannot provide a "valid and verifiable contact information" for the feed, nor it can assure that "each of the sources must meet News policy requirements".
AS OF TODAY, FLYM UPDATES ON PLAY STORE ARE BLOCKED BY GOOGLE. So I have archived this project in order to clearly show that I won't maintain it anymore. I'm not aware of any official way of publishing an RSS client on PlayStore and do not have motivation to argue with Google. I also do not have time and motivation to maintain Flym only for F-Droid repository, so I simply encourage people to fork if they want to continue the work.
I'm deeply sorry for all the people who like or contributed to Flym and I kindly ask you to not send me angry emails. I created and maintained Flym for free during several years, and since it is open-source you can try to give it a second life if you want to.
Flym News Reader
Light and modern Android feed reader (Atom/RSS).
It is free/open-source software under the GPLv3 license. You're free to modify it as long as you respect the license and keep it open-source.