To check or cancel your subscription, open the App Store subscription management screen. When you cancel, auto-renewal is turned off, and you can keep using Plus until the current billing period ends.

Subscriptions are tied to your Apple account. If you use the same Apple account, your subscription is synced automatically even after changing devices. You also cannot subscribe to the same subscription twice with the same Apple account, so duplicate charges are generally not a concern.

Developers cannot directly control subscription status, including checking, cancellation, or refund requests. If you have trouble with payments or billing status, please use the App Store support page.