if I buy hitfilm pro will I have this version forever or is it a subscription?
You will have the current version of Hitfilm Pro plus the next 12 months of updates. If you choose not to renew after a year you will keep the software as it is when your year runs out but will not receive future updates.
Think of it as buying a version you keep but subscribing to updates.
Is there a license to take only the current version (and not 12 months of updates) and for only one or two pcs (not three pcs)?
so the minimum to buy hitfilm pro is € 299?
Think so? I'm in the USA so I see everything in US dollars.
However, there are about 300 right dolars? There is no pro version that costs less (?)
Correct. You can always get Hitfilm Express, which is free, and buy add-ons as you need them.
Hope that helps!
Does Express with all the addon like Pro? Or pro has something more?
If you go to the first post in this thread you can download a PDF comparing Express and Pro which lists all the available add-ons.
Further information can be found in the Store. Just click the button at the top of the page.