Are you able to access it through your browser at trello.com or is that also blocked? I never use the app and use it via Chrome - it works great. If it is also blocked, I would encourage you to have your IT unblock it if you are using it for work, they most likely would just need a rationale of why you need it.
If you had to thrive a new habit during a lockdown, what would it be? Trello
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