A. To opt out of auto-renewal, go to your iPhone's Settings, tap on your Apple ID at the top, select 'Subscriptions', find Fun Bridge in the list, and choose 'Cancel Subscription'. This will prevent future charges at the end of your current subscription period.

B. If you encounter issues with the above method, you can also manage your subscriptions through the App Store. Open the App Store, tap on your profile picture, select 'Subscriptions', and follow the same steps to cancel your Fun Bridge subscription.