Dont waste your time. I downloaded and swiped through the the first 5 screens before getting to the mandatory screen to sign up. Entered in a display name, email and password then clicked submit. I kept getting "signup problem" in response. Whats the problem? Not sure. I altered the username, password thinking I didnt meet requirements- same problem. Tried to link to Facebook- nothing happened. Tried to linked to Google+, same thing. What a waste of time and energy. Ended up uninstalling after 5minutes of unsuccessful signup attempts.