Parents' Guide to


By Dana Anderson, Common Sense Media Reviewer

age 8+

Ads mar free version of simple, mostly harmless joke app.

Knock-Knock! Poster Image

A Lot or a Little?

What you will—and won't—find in this app.

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Is It Any Good?

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Kids say (1 ):

KNOCK-KNOCK! is a simple, fun app for kids who are going through that "knock-knock" phase to learn some mostly harmless new jokes. Knock-knock jokes help kids understand puns, so you might even call this app a tiny bit educational, although it is meant to entertain -- and includes some creative spellings (or misspellings). The ads at the bottom of the screen -- for apps mainly geared toward adults -- seem unfortunately mismatched to a young audience. No ads on $.99 version.

App Details

  • Devices: iPhone , iPod Touch , iPad
  • Pricing structure: Free
  • Release date: January 4, 2010
  • Category: Entertainment
  • Publisher: Ronald Bell
  • Version: 1.0
  • Minimum software requirements: iOS 3.0 or later
  • Last updated: August 22, 2016

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