If you subscribed to DOGTV through Apple TV or an iOS device, you will need to cancel your DOGTV subscription through your Apple ID account.
Follow these steps to cancel your DOGTV subscription from your iOS device.
1. Go to Settings > [your name] > iTunes & App Store.
2. Tap your Apple ID at the top of the screen.
3. Tap View Apple ID. You might need to authenticate your Apple ID.
4. Tap Subscriptions.
5. Select your DOGTV subscription and 'Cancel Subscription'.