The app itself is available on Windows, macOS and Linux. Thanks to the application of the principles of Kanban, you can visually display the process and always know who in the team is working on that. Stacks - easy to use task manager that helps you to display them on the Kanban board.
But sometimes I free features doesn't enough for me, and I often search to the alternatives. So I actively use Trello for planning blog posts and work with advertisers. This is autotranslated version of this post.
If you don't have user case that fits to Kanban, you don't need this system. I didn't like Kanban boards for a long time.
