If you are an Apple user, you can unsubscribe at [App Store > Account > Subscribe].
If you are an Android user, you can subscribe at [Google Play Store > Account > Payments & subscriptions > Subscriptions].
Even if you cancel the subscription, you can still use the service for the remaining time.
If you don't want to subscribe, you can cancel your subscription at any time up to 24 hours prior to the subscription renewal date. Refunds and other purchase-related procedures for already paid passes follow the terms of service and store policy. Please contact the in-app customer center or store for any unresolved issues.
Google Play Store and App Store cannot share subscription licenses, so if your OS system changes to another model, you must cancel the existing subscription and subscribe to a new one at the new store. At that time, the price of the existing subscription pass and the price of the new subscription pass may differ depending on the price policy change