Questionable strategy to sell the app by making your kid cry!
Was intending to buy this, but the annoying self advertisements killed that plan right away! "To continue, ask an adult..... " Repeated forever. Also a 30 second nagsscreen after about 4 demo games. Shameful setup to show ads to kids, even if it is self ads. Close buttons hidden in ads, so they can't easily click away. Designed to annoy parents - so beware.. I don't trust that the ads will end if you buy it - as there seems to be "downloadable content" also. I went for Khan Academy instead!