According to the Socrative Team:
A company called Master Connect has recently acquired Socrative. They are saying that it will still be free, but will go through a 2.0 Upgrade This Weekend!
On Saturday July 12th, if you have an account, your account will be updated to our amazing Socrative 2.0. It will be a seamless changeover of all your quizzes, reports, credentials and apps. We are so excited to have everyone enjoying Socrative 2.0 for the school year!