Our organization uses Jira on public cloud.
We want to trial advanced roadmap add-on.
Trying to download the app for Atlassian Marketplace, but all I get is datacenter/server options.
Does that mean that 'Advanced Roadmap' is not supported on cloud instances or am I doing something wrong?
Advanced Roadmaps for Jira is an add-on technically. It used to be a third party add-on but was incorporated into the Jira product, but is only available on Cloud Premium subscriptions.
You can upgrade your Jira subscription on a free trial basis.
I personally love AR and there are some other perks to the premium subscription.