Pre-installed RemotePC question

[laurenforyou]

Hi, my tab has the pre-installed RemotePC app. I looked it up online and on that site it makes users pay monthly.. If this is pre installed, do tab pro users still have to pay?
Also, I made an account (unaware that my samsung account works) and now I want to log out of that account and start using my samsung account. I can't seem to find the log out option on the remote pc app.. someone help me please!?
Thanks!