When comparing NewsBlur vs Reeder, the Slant community recommends Reeder for most people. In the question“What are the best RSS readers for Mac OS X?” Reeder is ranked 2nd while NewsBlur is ranked 10th. The most important reason people chose Reeder is:
Integrates with Instapaper, Pocket and Readability.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Recommended articles that improves over time
NewsBlur has a discovery algorithm that users can "train" to show stories they are interested in and hide ones they don't care about.
Pro Keyboard shortcuts for fast navigation
By default arrow keys and spacebar are used to quickly navigate stories, but they can be rebound for premium accounts.
Pro Multiple layout & style options
NewsBlur allows users to customize the font size, line spacing, story layout, and type faces.
Pro Fast to use
Very fast to navigate around the UI and load articles.
Pro View content the way it is originally displayed
NewsBlur offers an option of reading articles just like they are displayed on the original site.
Pro Organize feeds into folders
Feeds can be grouped into folders for easier management and to allow users to separate feeds for work, comics, research, etc.
Pro Share stories with comments
Burblog is a simple, customizable website for sharing stories with comments that people can subscribe to.
Pro Aggregates email newsletters
You can forward email newsletters to a user-specific email address to have them aggregated in your feed reader along with your RSS content.
Pro Free / Libre software
NewsBlur is FOSS, so it can be freely modified & redistributed.
Pro Freemium service
Free version has a limit of 64 sites. Upgrading to unlimited sites costs $1/month.
Pro Integrates with read-it later apps
Integrates with Instapaper, Pocket and Readability.
Pro Integrates with a wide variety of RSS services
Reeder supports Feedbin, Feedly, Feed Wrangler, Fever, FeedHQ, Inoreader, NewsBlur, Minimal Reader, The Old Reader and BazQux Reader.
Pro Has dark theme
Beautiful dark theme for best reading.
Pro Integrates with Instapaper
Pro Nice keyboard shortcuts
You can also customise keyboard shortcuts.
Cons
Con Freemium
This service is free, but can cost up to $24 per year for premium users.
Con Can't have unread items older than a 14 days/month
This is a premium feature.
Con Can't remove unused tags
Once you create a tag, it will always show up in tag selection screen. There's no way to delete it from the list.
Con Can't edit tags
If you've made a typo, you have to create a new tag. You can't rename the existing one.