It’s a lot of fun
I really enjoyed learning basic programming with this app. There are plenty of levels that opened up after I paid the $3 for them. While the levels are simple at first, they do require some thinking later on. I’m not sure that regular 4-6 year-olds would be able to figure them out on their own though. But, with an adult present and a bit of experimentation, it becomes possible — and satisfying — to complete all the challenges.