Generally speaking, migrating from Wordpress, Substack, and other popular publishing platforms is very easy. Ghost Pro will move over most sites for free when you sign up for an annual plan. Outpost does not need to be involved in that process.
However, we can help with other facets of the changeover, including suggestions on what theme to use, helping you modify your theme, migrating data about your subscribers, and helping you through the migration process generally. We can also help with a DNS switchover and setting up a staging site.
We're always happy to give advice, but if you want hands-on help during the switchover process, we offer migration services with a one-time fee. If you're a medium to large-sized site with needs beyond simply switching over your content, contact as email@example.com about how we can help.