With bullying a common problem in schools, Horton Hears a Who! teaches an important lesson to children about sticking up for people who are unable to defend themselves. The creatures that share the jungle with Horton (and who do not hear the Whos) taunt and mock him for his actions and ultimately try to punish him, but he maintains his watch over the Whos, underlining how critical it is to stick by your virtues, even when there is peer pressure to abandon them. The message alone makes this a five-star app, but the added bonuses of charming narration and wonderful educational elements, such as highlighted words and picture identification, put it over the top.

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