Numplussed Privacy Policy - Introduction
Like a lot of mobile games, Numplussed uses the Google AdMob service to display adverts. Google AdMob uses the devices advertising id to serve personalized ads based on the users interests, and so this involves collecting and analyzing user data. Nearly all of the privacy policy that follows below deals with the details of Google Admob. Apart from its use of Google Admob, Numplussed does not gather or use any data about users.
Google have an opt-out page to opt-out of personalized advertising here. Google's main Privacy Policy is here.