wich features of wi-fi protection is available in free version of CIS?

wich features of wi-fi protection is available in free version of CIS? ???

Put simply, everyone, CIS is the exact same software ALL versions, with NO limitations.

The differences are the additional services you get with the package.
e.g additional paid services.

so, is there any FREE wi-fi protection service in the FREE package?

No, you will have to sign up for the free wifi package here. It has a 10 GB monthly limit.