This document clarifies how User data and any sensitive information is handled in the App.
Internet, Access Network State, Access Wifi State:
These are used to display the ads.
Personal Data collected for Advertising
Cookies, unique device identifiers for advertising (Google Advertiser ID or IDFA, for example) and Usage Data
Google may use the advertising ID from your device to generate interests and demographics (for example, 'sports enthusiasts'). Interests, demographics, and other data may be used to serve better targeted ads to you. You can view and edit your interests and demographics, or opt out of personalized ads from https://www.google.com/settings/ads