Our apps use AdMob as an ad provider. AdMob wants to show ads relevant to you and uses the device’s advertising ID to serve personalized ads based on the user’s interests. Read all about the Google page to opt-out of customized advertising: https://adssettings.google.com/u/0/authenticated. And here is the link to Google’s Privacy Policies: https://policies.google.com/privacy and https://policies.google.com/technologies/partner-sites.