How do I cancel an App

How do I cancel an App

Apps cannot be canceled, but subscriptions linked to the services available through that app can be canceled. Apps can be deleted. Deleting apps by itself does not cancel any subscription.

How do I cancel my My app Prescription?

Which app, which service?

Subscriptions from in-app purchases on Apple devices can be canceled as described in: If you want to cancel a subscription from Apple - Apple Support

External camera

How does that relate to the question? Please elaborate.

See instructions in If you want to cancel a subscription from Apple - Apple Support