The problem is that your "See how it works" link prompts people to log in. I don't want to log in, so I guess I'll never find out how it works, or download the app.

The issue is that the "How it Works" link points to a saved Instagram STORY, which requires viewers to be logged in.

If it was a regular Instagram post of a video, people could view it without logging in (just tested in an Incognito window).

But yeah, probably better to self-host, or at least put it on YouTube.