Thank you for constructive feedback, pricing calculator is a good idea.

As of now, The pricing section on FAQ page provides examples of pricing https://upvpn.app/faq/#pricing

Moreover, If you like to see it visually the first picture of dashboard on landing page https://upvpn.app showcase real usage and real charges.

I provided addition info on pricing model here: https://news.ycombinator.com/item?id=36512794