Difference between Hits,Free, and Unknown?

[RobloxCrack101]

While cracking accounts I notice three words that the account stuff is located in. I know that hits mean the account works but what does free and unknown means? does it mean it might work or no?

 

[Lily]

Hits means the account has a valid subscription/something with on it.
Free, valid account with no subscription/nothing on it.
Unknown, a non-valid account.