You must have purchased that particular subscription directly from an app or the app's website. Scroll down to itunes & app store. Tap on the apple id at the top of the screen.
Then, Tap Subscriptions To See The List Of Active Subscriptions On Your Iphone.
Tap on the subscription you’d like to cancel, then tap cancel subscription. In the settings menu, tap on your “apple id name” located right above the airplane mode toggle. To get started, follow the steps below.
If You Are Using An Iphone 8S Plus, You Can Delete Expired Subscriptions By Following The Steps Below.
At the top of the settings tab, tap your name and apple id. Scroll down to view the expired section with your old subscriptions listed beneath. Wait while the apple id information loads.
Here, You’ll Be Able To Manage All Your Active And Inactive Subscriptions.
Try going to the app's website and then after logging in, cancel the subscription in the settings. The list of active subscriptions will display. Tap on the subscription you want to cancel.
Launch The App Store App.
Tap your profile icon at the top right corner of the screen. Scroll to the settings section. First open the settings app and tap your apple id at the top of the page (the one with your profile image and name).