On your iPhone, iPad, or iPod touch
To view your subscriptions, use the following link: View my subscriptions.
You can also access your subscriptions from your device by entering Settings > iTunes & App Store > Apple ID
Or by going directly to the iTunes Store. Your Apple ID will be at the bottom of the screen.
Now you need to follow the simple steps:
1. Tap Apple ID and choose the first option View Apple ID. You might need to sign in or use Touch ID.
2. You will see the page with your Account
3. Scroll down to Subscriptions and tap it.
4. From the list of your subscriptions choose the one you want to manage (here it's Coloring Book for Me).
5. After tapping one of your subscriptions you will see your Options. You can now change your subscription plan or cancel it by tapping Cancel Subscription.
*After canceling your subscription, you will still have a full access until the expiration of the billing period (the end date is indicated below the option Cancel Subscription).