It’s ~$3 a month.

Iirc it doesn’t show up in the app itself. You need to click on the link to torrentio’s site and install from there. It’s easiest if you have an android phone and do it in your phone. Stremio settings are universal, so you can set it up on your phone and then install stremio on a streaming device and it will keep the same setup.

I’m pretty sure are better instructions around if you Google it.

You have to use a server outside the US for port forwarding though. Canada works.