It’s a truly classic idea for an app, and it’s done so perfectly well, so slick, smooth, fast, and the sharp graphics and seemingly endless variations are astonishing. Makes me wonder what the code is for it. I wonder if higher resolution images could be saved. Perhaps there could be other options, like for more colors or shapes. It’s a great app. I’ll add that it is possible to get animations that last for a few seconds or longer, at least on my iPad Pro, especially when there are spiral shapes. Given certain settings, I’ve been able to get certain patterns where spirals go round and round. They eventually stop, but I’ve had an image where the spinning continues non-stop.
It would be interesting to be able to freeze the image, which you can do, but then be able to scroll around, which you cannot do. As it is, if you move around, the pattern changes. It would be nice to be able to freeze the pattern, and then move around to see what it looks like beyond what you currently see on the screen.