When comparing ZenHub.io vs Huboard, the Slant community recommends Huboard for most people. In the question“What are the best GitHub-based project management solutions?” Huboard is ranked 1st while ZenHub.io is ranked 9th. The most important reason people chose Huboard is:
HuBoard presently states that they integrate with Gitter, Slack and HipChat; they provide a general "Outgoing Webhooks" capability and are working on a general-purpose API. [As an open-source app](https://github.com/rauhryan/huboard/), they leverage both paid and donated contributors to the product hosted as their service.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Integrated in GitHub Issues UI
As a chrome extension, ZenHub offers integration directly into the GitHub Issues user interface. You can view your boards without leaving GitHub.
Pro A variety of intergartions
HuBoard presently states that they integrate with Gitter, Slack and HipChat; they provide a general "Outgoing Webhooks" capability and are working on a general-purpose API. As an open-source app, they leverage both paid and donated contributors to the product hosted as their service.
Cons
Con Only supports Chrome
It's integration directly into the GitHub UI only supports Chrome (it's a chrome extension).
Con Project seems dead
No recent commits on the main GitHub repo over the last years.