The flash version seems to just repeat the same "level" over and over again. It's basically equivalent to playing one of the hundred levels of the iOS version.
I suspect any game with levels would seem boring if you judged it based on a version that only had one level to play over and over.
What happens in the other levels? In the Flash version, each succeeding 'level' just had more dots. I got to 'level' 11 or so, then got bored and stopped playing.
So I'm just trying to figure out how the iOS version is different/more/better