Offline is nice in theory, but not as useful in reality. For solo projects, I will skip all the fancy tools and just use org-mode (emacs), which is offline. For

Offline is nice in theory, but not as useful in reality. For solo projects, I will skip all the fancy tools and just use org-mode (emacs), which is offline. For a company project, most people don't get to decide which tool to use. Besides, if you spend significant time in a project management tool, even if your title is project manager, there is something seriously wrong with the project already. In which case, the tools is not the problem you should be worried about.