Plopstar

Poo science games for ages 3 to 7, on iPhone, iPad and Android.

Feed Gus two colours and see what comes out the other end. Then work out which animal did which poo. Wombats really do square ones. There are also dot-to-dots, shape puzzles, pairs and dot painting.

Kids don't need to be able to read to play it. It has no ads and doesn't track anyone. You can try it for free, and it's a single payment if you want the rest.