That app isn't defamatory though. Caricature isn't defamatory without associated symbolism or represented actions to make claims about the individual represente

That app isn't defamatory though. Caricature isn't defamatory without associated symbolism or represented actions to make claims about the individual represented. Drawing a silly picture isn't enough, you would have to draw a picture of someone doing something negative that they do not do, in a way that implies to the viewer that this person really does this thing and that you are not just joking about it.