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.
European consumer regulators have criticised Apple for not doing enough to tackle bills unexpectedly run up by sneaky apps.
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.
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.
You can turn off in-app purchases entirely or put the kibosh on the 15-minute grace period by requiring a password for every purchase.
After a recent settlement with the FTC, Apple's iOS 7.1 offers up a warning message about its 15-minute window for in-app purchases.
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.
Some of the most downloaded and highest-grossing video games in leading app stores use casino motifs for their designs, raising questions about the potential dangers of gambling apps.
Honest Android Games curates games from the Google Play store that won't ask you to spend extra money on in-game items.