We own the data we create on our boards.

Really easy to use and to understand, yet powerfull. It focus on the basics things and do it well. The user interface is nice and easy to handle even for non tech person. It's a small project management tool for... small project. It's free (as in free beer) and open source. You can host it on modest server, it's easy to install.

- Open-source, thus installable on-premise. - Very responsive. - Feature-complete for a standard usage. - No learning curve if used to Trello.