When comparing NewsBlur vs DEVONthink, the Slant community recommends NewsBlur for most people. In the question“What are the best news readers?” NewsBlur is ranked 4th while DEVONthink is ranked 22nd. The most important reason people chose NewsBlur is:
NewsBlur has a discovery algorithm that users can "train" to show stories they are interested in and hide ones they don't care about.
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 Can store any file type
File types containing text are indexed.
Pro Very flexible
An extensive feature set makes it easy to adapt to your work flow.
Pro Completely offline
Pro Sync
Sync between different macs and/or ios devices is fast, safe and easy. You can sync via iCloud, Dropbox, WebDAV or WiFi.
Pro Full text search
Pro Webpage Clipper
A flexible web clipper can add contents of any web page to DevonThink.
Pro One-time purchase vs monthly subscription.
Pro Paperless office functions available in PRO Office version
Includes processing of scanned documents, OCR etc.
The OCR function is based on FineReader and is probably the best one on the market.
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 Only runs on Macs, iPoneOS, iPadOS & Web
It does not run on Windows, Android, and Linux.
Con Stores in a proprietary format
It stores the whole database in a proprietary file package, that you cannot easily access from another app or from the Finder. Considering you might be classifying a huge quantity of files there, it is quite problematic if you want to interact with this data from other applications.
Con Very limited automation
While the marketing claims are about an intelligent document manager, it actually does not offer many automation features, such as automatic classification, tagging and renaming of the files. It's much more like an extended file explorer.
Con Costs US$79.95 for just the Personal version
One-time purchase instead of monthly subscription.
Con Non free/libre (proprietary)
