This app works on my iPhone but not on my sons iPad. He can download and install it but when he clicks to open it, it shows a black screen then closes. However, it’s not clear to the child what they are to do and there is only one thing it allows you to do. When it erupts, only one bird with some lava comes out. Maybe make it more interesting for kids to enjoy, clearer instructions on what to do, and more time before ads pop up. Needs to have more then one thing to do as well.