Do it on your store.
Google Play Store
- 👉 Open Play Store
- 👉 Tap your account icon (top right)
- 👉 Select Payments and Subscriptions
- 👉 Find POPCORN in your subscriptions list
- 👉 Cancel subscription
App Store
- 👉 Open Settings
- 👉 Tap your Apple ID
- 👉 Select Subscriptions
- 👉 Find POPCORN and tap Cancel Subscription