|ON: Content is age-appropriate for kids this age.|
|PAUSE: Know your child; some content|
may not be right for some kids.
|OFF: Not age-appropriate for kids this age.|
|NOT FOR KIDS: Not appropriate for kids any age.|
Parents need to know that Knock-Knock! supplies kids with a stream of knock-knock jokes, all at the tap of a finger. The "dirtiest" jokes you'll find here go something like: "Knock, knock," "Who's There?" "Champ." "Champ Who?" "Champ poo your hair. It's dirty." Small ads appear at the bottom of the screen in the free version. No ads in the paid version also available in the App Store.
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