I self host my own projects on Redmine but among all the tools that I had to use with my customers I like Kanbanize because the team could see the activities, o

I self host my own projects on Redmine but among all the tools that I had to use with my customers I like Kanbanize because the team could see the activities, open the cards, comment, move them to different columns. For one hundred open cards I prefer that to the list in Redmine. However we had many hundreds of open cards in a large backlog and a person spending a significant amount of time on keeping the project in a reasonable shape.