WhatsHappen 2.7.1 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The program is included in Internet & Network Tools. We recommend checking the downloaded files with any free antivirus. This software for Mac OS X was originally produced by Arturo Rivas.
From the developer:
WhatsHappen is a RRS news reader for your Mac. The application can keep the links synchronized between devices. Your reading experience will be easy, simple without distractions. You will also read the news directly on the website allowing your favorite blogs and newspapers to continue to be financed by advertisers.
You may want to check out more Mac applications, such as Pineapple News, Rss Growler or Pressjack Free Edition, which might be related to WhatsHappen.