Alternativas ao ReaderBlocks para Opera com licença comercial

• Opera
  Todas as plataformas Windows Mac Linux Chrome OS Android iPhone Windows Phone Apple Watch Android Wear iPad Android Tablet Kindle Fire Windows S Web Self-Hosted Software as a Service (SaaS) Firefox Opera Safari Vivaldi Browser BSD Java Mobile Wordpress PortableApps.com Waterfox Pale Moon Chrome Thunderbird Cloudron ReadKit Leaf RSS Reader News+ FeedMe Slow Feeds Reeder
• Licença comercial
  Qualquer licença Licença gratuita Licença Open Source Licença comercial