Nighthawk: Debug iOS apps remotely from your browser

Looks like this could be very helpful. The landing page makes a great first impression, great animations explaining what it does. However...

Can someone explain to me why so many startups have started to not list their pricing plans anywhere at all, even when you click on the "sign up" button? Did some startup guru tell people to stop putting pricing everywhere and everyone is following their advice?

This is so very frustrating to me as a potential user. There is no way to tell whether this service might be "out of my league" as a solo dev, whether there might be a free plan, etc.