I know this is a joke, but for for anyone who was wondering, > all data used to set up and control this feature is kept securely on device, and isn’t shared wi

I know this is a joke, but for for anyone who was wondering, > all data used to set up and control this feature is kept securely on device, and isn’t shared with Apple. It's not an API adopted which apps can use, it's a system pointer, like a mouse or trackpad