Jira vs Trello vs ZenHub Comparison

Jira
Jira started as a bug tracking software. I remember using it around 10 years ago, when we didn’t hear about agile or scrum at all. Now Jira has been adapted to handle agile projects, though cards on its agile wall are still called “issues”, no matter if that’s a story or a bug.
I’ve been using Jira as a scrum master for 2 years now. In general, it’s sufficient for this…