This theme is free. You can join to Aftertype with the free "Starter Plan" and start using it right away.
Only the Aftertype Assistant won't work unless you upgrade or sign up for a Plus or Unlimited Plan. When you level up you get all the themes and features!
What is the Aftertype Assistant?
It is a utility that lets you manage and add services directly in your blog. Having an account at Aftertype and using a generated token to verify you have permissions on your blogs, you can do things like adding widgets.
The next GIF shows the Aftertype Assistant in action while mounting the demo for the Wordwise Ghost Theme Demo, it works in all the themes.
So, as you can see, you will get more than just themes. There is a complete app that lets you manage easily some features that could take you more time by coding or modifying the theme(s).
Aftertype is meant to bring you the tools & you can focus on generating meaningful content