StumbleUpon vs Raindrop.io : Which is Better?

StumbleUpon

StumbleUpon is a discovery engine that finds and recommends web content to its users. Developed by StumbleUpon

License: Free

Apps available for Windows Linux Online Android iPhone

Raindrop.io syncs bookmarks into the cloud and makes them beautiful as well as easy to search. Developed by Rustem Mussabekov

License: Freemium

Apps available for Mac OS X Windows Linux Android iPhone

Feature	StumbleUpon	Raindrop.io
Discovery engine
Blogging
Bookmarks
Content discovery
Visual bookmarks
Tag based
Category filters
Social feed
Blog template
IFTTT integration
Bookmarklets
Image board
Social Bookmarking
Bookmark Archiving
Dead Link checking
Bookmark organization
Management of bookmarks
Google Chrome Extensions
News
Social network
Native bookmark sync
Browser Sync
Firefox Extensions
Web-Based
Artificial intelligence
Automatic Tagging
Ad-free
Mobile friendly
Integrated into iOS
File Tagging
Saving bookmarks
Sorting by folder
Document annotations
Annotate screenshots
Text Highlighting
Self-hosted in intranet or private cloud
Encryption
End-to-End Encryption
Clean design
Android Sync
Auto-saving
Checklists
Website annotation
Full text search
Save web page for offline use
Screenshot Tools
Browser extension
Tag groups
Batch rename files
Cross browser support
Sequence Diagrams
MarkDown support
Export to HTML