yes when you have money
If you know it's shareware, and you don't have the money, you should not be using it.
WB by itself is $20US.
If you are telling the truth about your age, a 26 year old should be able to find that kind of cash somewhere. WB5 has been out for a while. Long enough for you to save up I think.
(Apologies if you are in a situation where you can't)