'View plans' is a conversion killer. Working in the SEO industry, Im willing to have tools like this, but showing me the prices before of knowing how you pretend to do it, it takes me back. just my 0.02
It's definitively valid, now you say that I can feel how it looks weird/scammy.
Anyway to answer your question, we've come up with an small piece of algo that use a mix of probability, landing pages and internal search engines to make the best guesses.
We'll work on better marketing texts maybe a video, we've just launched yesterday! :)