Canceling a Zoom subscription on the Apple App Store
If your Zoom subscription is billed through Apple's App Store, you may cancel it at any time. However, you must cancel your subscription directly through the App Store.
Note: Beginning with Zoom app v6.5.0, new iOS users in the US can purchase, manage, and cancel subscriptions through the Zoom website. iOS users who subscribed through the Zoom website must cancel their subscription on zoom.us rather than through the App Store.