Could you please provide information on pricing, payment options, and any specific requirements for upgrading?
Welcome to the Atlassian Community!
SeeĀ https://trello.com/pricing for the various levels of functions you can get and how many users (which you can increase or decrease any time you want)
As a Cloud service, rather than server software, you do not need to think about upgrades, Atlassian handle all of that for us.
It looks like you're new here. Sign in or register to get started.
