You manage subscriptions with the Settings app
Open the Settings app, then tap on App & iTunes Stores.
Tap on your Apple ID
Tap View Apple ID. You may be asked to sing in.
Under Subscriptions, tap Manage.
Look for the Castle Premium subscription and tap on it.
Look under Your Subscription to see your current term and expiration date.
To change your subscription term, choose a new term under Renewal Options.
To stop your subscription, turn off Automatic Renewal under Renewal Options. To avoid being billed for another term, you must turn off automatic renewal at least 24 hours before the end of the current subscription period.
Open the Settings app, then tap on App & iTunes Stores.
Tap on your Apple ID
Tap View Apple ID. You may be asked to sing in.
Under Subscriptions, tap Manage.
Look for the Castle Premium subscription and tap on it.
Look under Your Subscription to see your current term and expiration date.
To change your subscription term, choose a new term under Renewal Options.
To stop your subscription, turn off Automatic Renewal under Renewal Options. To avoid being billed for another term, you must turn off automatic renewal at least 24 hours before the end of the current subscription period.