grr.app 1.0-1build1 (amd64 binary) in ubuntu bionic

 Grr (Günther's RSS Reader) is a reader for RSS news feeds. It has
 the following features:
 .
  * Parsing RSS feeds (including Atom).
  * Fetching feeds from the web.
  * Showing headlines.
  * Showing the article's descriptions.
  * Categories for feeds.
  * Articles can be rated.
  * Simple HTML rendering on GNUstep.
  * Serializing obtained feed information to hard disk.
  * Managing (adding, removing) feeds.