Around $79.99/year (which averages to roughly $6.67/month).
First, it is critical to understand that (developed by TouchVPN Inc.) is a freemium service.
. While many "keys" or "cracks" are advertised online, using them often involves significant security risks. Understanding Touch VPN
They occasionally offer limited free trials, though you usually have to provide billing info upfront. Why You Should Avoid "Free" License Key Sites