How to cancel a subscription on iPhone
Open Settings
On your iPhone or iPad, open Settings and tap your name.
Settings › Your nameOpen Subscriptions
Tap Subscriptions to see everything Apple bills you for.
SubscriptionsChoose the subscription
Tap the subscription in the list.
Cancel and confirm
Tap Cancel Subscription and confirm. If there’s no Cancel button and an expiry date shows, it’s already cancelled.
Steps from Apple Support: Cancel a subscription from Apple
Still being charged?
The subscription isn’t in the list
Search your email for “receipt from Apple” and check which Apple Account it names. No Apple receipt? Another company bills you; check your bank statement.
Cancelling a free trial
Cancel at least 24 hours before the trial ends if you don’t want it to renew.