Memory management in iOS apps is typically handled by the Automatic Reference Counting (ARC) system. This system automatically manages the memory of an app by tracking and managing the app’s references to objects.
For example, when an app creates an object, the ARC system will increment the object’s reference count, which indicates that the object is being used. When the app no longer needs the object, the ARC system will decrement the reference count and, if the count reaches zero, the object will be deallocated and its memory released.