Viral tweets and Viral Inviter: Worth it?

Hey guys, I was thinking of downloading one or more of the programs I listed in the title: Viral tweets or Viral Inviter.

Just a couple questions: a) Has anybody had any success with these scripts?

b) Is it possible for me to use these softwares on free hosting (like 000webhost), or should I buy some cheap hosting.

c) And if I were to pay someone to install it correctly, what would be a fair price?

Thank you for your time, and thanks will be given for helpful answers

-Dan

dont't d0 its a scam