The simplest and most convenient way to cancel your subscription is through your dashboard. Under Manage Subscriptions, select the logo of your subscription. For components of your subscription you wish to cancel, go down to Disable Auto-Renewal and tap it.
Tap the Apple ID. The password you used to make your purchase. Select View Apple ID and type in your password. Scroll down to iTunes Store & AppStore.Tap your e-mail and Apple ID.