Revised Children's Online Privacy Protection Rule Goes Into Effect Today. Also, adult advertising being displayed by apps made for children
“The revised COPPA rule addresses changes in the way children use and access the Internet, including the increased use of mobile devices and social networking. The modified rule,approved by the Commission in December 2012, widens the definition of children’s personal information to include persistent identifiers such as cookies that track a child’s activity online, as well as geolocation information, photos, videos, and audio recordings.”
Also about children, a recent article on a popular news site appeared about pornography and ads appearing in apps made for children:
"ADVERTISEMENTS for pornography and sex chat lines are appearing in apps made for children but Australia's advertising industry says it is powerless to stop them, calling the issue "tricky and "a grey area". Advertising regulators instead say they are unable to prosecute overseas advertisers and rather than seek the power to do so they advise parents to "take some responsibility" for what their children see in apps."
There’s a combination of factors here; yes, advertisers can “target” their advertisements, but app owners/developers may also have some say about the types of advertising they are willing to accept, depending on who they choose to source their advertising from, and the controls provided by their chosen provider.