When comparing AgileZen vs Blossom, the Slant community recommends Blossom for most people. In the question“What are the best online Kanban tools?” Blossom is ranked 13th while AgileZen is ranked 17th. The most important reason people chose Blossom is:
An update is posted to the Slack channel every time a task is created, completed, moved, or commented upon.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Lean interface
Focus on what's really needed.
Pro Easy to use
Pro Free tier
Pro Slack integration
An update is posted to the Slack channel every time a task is created, completed, moved, or commented upon.
Pro Simple & clean interface
Design focuses on clarity.
Cons
Con Not for Scrum
It's not a Scrum board and there is no burndown (but a burn up).
Con No free plan
There is no free plan like for personal use and the minimal cost of $19/month might be prohibitive.
Con Slack integration is really basic
There is no way to interact with tasks in any way - new tasks can't be added, completed tasks can't be removed, tasks can't be assigned, etc. The integration only sends updates to the Slack channel. There is also no way to fine-tune what updates get posted to Slack.