We are looking for a management software which suits a software startup perfectly.
We are using GitHub as version control. We do bug tracking with GitHub issues. All we want is to avoid data duplication and control everything from one place. For example, if we open a issue from GitHub and assign to someone, we don't want to create a task in another project management solution (like Zoho) manually. Management should not be an overhead and boring paperwork (e.g. syncing tasks from multiple locations by hand).
Operating system is not important. Budget not important.
We tried so far:
GitHub issues, lacking business management.
Zoho, heavyweight and a lot of unnecessary features.
There are dozens of alternatives in market so exhaustively searching was not feasible, then I decided to ask. I would be glad if you share your experience and recommendations. Why you choose a software over the other one etc.