Figured it out. There’s a pricing menu at the top. If you scroll down, you only get the buy now button which requires auth. Thanks for pointing it out.

Yeah, that buy now is pretty jarring. It was the first thing I saw, not the Pricing link.

You hit "Buy Now" and it's a Sign In With Apple prompt and you'r thinking "I don't see any pricing, am I going to get to see before the purchase?"

I just updated the pricing last week and missed this button. I've fixed it now, sorry about that!