If you signed up for CBS All Access on your Android device, you'll need to cancel through the Google Play store using the relevant steps below:
 
On your smartphone or tablet: 
1. Open the Google Play Store.
2. Tap Menu > Account > Subscriptions.
3. Locate Subscriptions, and select CBS All Access..
4. Tap Cancel. 

On your desktop:
1. Go to play.google.com/store/account
2. Locate Subscriptions, and select CBS All Access.
3. Click Cancel Subscription. 

Important: Uninstalling the app will not automatically stop your subscription. You must cancel your subscription to end your subscription.