Cubelets

do you work for a second but then it just stopped and crashed over and over and this happened with this other apps too.

The app is functional but it seems like it is not a native iOS app but an embedded web page. To make it worse, the designers decided to make the view zoomable (or didn't know how to disable zoom). This leads to an incredibly frustrating user experience. You can never guess if you are doing to move a slider or scroll/zoom the entire UI. It's basically unusable for younger kids and is frustrating for adults too.

The new personality swaps functionality allows quick and easy switching of behaviors without any programming. Super fun!