If you have a recurring subscription and wish to cancel this please use the following instructions...
Open the iPhone Settings app
Tap your name, then tap Subscriptions. If you don't see "Subscriptions" in the Settings app, tap "iTunes & App Store" instead. Tap your Apple ID (which is usually your email address), then tap View Apple ID. Sign in, scroll down to Subscriptions, then tap Subscriptions
Tap Cancel Subscription. If you don’t see Cancel Subscription, the subscription is already cancelled and won't renew
Open the Android Google Play Store app
Tap Menu > Payments & subscriptions
Tap Cancel Subscription and follow the on screen instructions