Difference between Saturday and Sunday ACT

<p>Hey everyone,
Just had a quick question regarding the ACT. I have a friend who is going to be taking it the Dec ACT on Sunday. Is that Sunday version going to be the same test as the Saturday version of ACT test? I hope it isn't because I believe i remember that people discuss the answers online here. I dunno, it just seems like an unfair advantage. Im sure ACT.org would have taken this into consideration.
Thanks in advance
PS: Love the website, its been tons of help.</p>