[goober84]

Is there a Showtime Anywhere app that you can use your cable provider credentials on instead of paying through iTunes?

Posted via the iMore App for Android

[Quis89]

Have you checked the Showtime website?

SHOWTIME ANYTIME

https://www.showtime.com/#signup

[Rob Phillips]

Here it is:
Showtime Anytime by Showtime Networks Inc.
https://appsto.re/us/t0m3C.i
I'm logged in through Comcast. No problems. Careful not to confuse the "Showtime" app with the "Showtime Anytime" app.