For Android devices:

1. Open Google Play.
2. From your profile menu on the top right, choose Payments & Subscriptions.
3. Select subscriptions, and from the list, the subscription you wish to cancel.
4. Select Cancel subscription. If you are unable to find the subscription you wish to cancel, please check this guide: https://support.google.com/googleplay/answer/7018481


For iOS devices:

 1. Open App Store.
 2. Tap on your name and then on Account Settings.
 3. Select Subscriptions and tap Manage on the subscription you wish to cancel.
4. Tap Edit next to the subscription, and from there, select Cancel or Cancel subscription. If you are unable to find the option to cancel the subscription, the subscription is already canceled. If you are unable to find the subscription you wish to cancel, please check this guide: https://support.apple.com/en-us/HT202039

Please note that uninstalling the game will not automatically cancel the subscription. Canceling the subscription will stop the automatic billing for future months, but it will not refund any current or past charges.