Lockdown is not that granular on the iPad. If I allow access to app-measurement.com, it will be active for every app. The information they collect includes:
Read images from the terminal memory and send it to https://app-measurement.com
Read the hardware information and send it to https://app-measurement.com
Read all the files of your application cache folder and send them to https://app-measurement.com
Do http requests on : pagead2.googlesyndication.com, plus.google.com and googleapis.com (shadow profile?)
I understand that EN needs to monetize the free users. I feel that by paying the annual subscription, I should be able to opt out of EN tracking me.