Slenke vs. Jira

Horrible usability, developer focused, and filled with technical jargon making it counterproductive.
If you've used Jira, Slenke will feel like a breath of fresh air.

Threaded Posts and Comments
Instant Messaging
Post Bookmarking
Task Lists
Task Boards
Task Calendar
Unlimeted Task Hierarchy
Unlimeted File Storage
End to End encryption on all messages and files
Time Tracking
Time Resource Management
Guest Users
Multi Level Permission System