I was a trello user for 2+ years, but now prefer kanbanflow - I would say because it feels less bloated and is really suited to my current scenario of 3 users.
Built-in pomodoro timer and great reports. I use it for my weekly planning. Works very well on mobile too (just add it to your homescreen).
Here is a nice overview of the app : https://www.youtube.com/watch?v=W9k0OhJkjQ0
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