Get around the bugs
Download Showtime App for iPad/iPhone and sign up for 30 free days.
The app is buggy but I did get it to work by following these steps.
- Open the app and sign up for 30 day free trial. (at this point for me the app would stay at the welcome page)
- Login to Showtime on your computer. It will ask for your date of birth.
- Close the Showtime app on your iPad and then open again and agree to their terms of service. At this point you should be good to go.