The search giant is the latest big tech company to tangle with the Federal Trade Commission over children making unauthorized buys within apps.
In response to the European Commission's requests, Google says it won't use the word "free" when referring to games that contain in-app purchases.
After Apple pays $32.5 million to customers over purchases made by kids using parents' passwords, Google may be next to face the FTC's scrutiny.
A class action has been raised against Google over in-app purchases by a mother whose young son spent US$65 on in-game currency.
European consumer regulators have criticised Apple for not doing enough to tackle bills unexpectedly run up by sneaky apps.
E-mail lets parents know how they can claim compensation for unauthorized use of in-app purchase in games and apps sold through the App Store.
Regulatory body wants e-commerce giant to agree to fines, policy changes related to children buying items in apps when logged in with parent's account.
Polarr opted not to build an app specifically for Apple's iOS software, instead going the less-traveled route of using more-universal Web technologies. That decision is now paying off with droves of downloads.
The settlement that will give some 23 million iTunes account holders a chance at refunds from in-app purchases by minors is closer to approval.
Apple has settled a lawsuit over the unauthorized use of in-app purchases within games, a practice that could rack up big bills.