>>6009103it is, but it's just inferior.
Koikatsu is a hentai game of the type of those dating simulators, with a sex module, it has a free move option when you can just go to the sex part and select different sex positions and things like blowjobs, titjobs, and sex poses like mating press, cowboy, etc, predefined and you can move the camera, you can import custom characters that people made easily with images called "cards" or some times with some addons that add the particular clothes of that character or hairstyles that people made. It has a "studio" option when you can pose characters and take photos, and posing the models in the way you prefer. You can animate things like other 3d programs, but you need mods to make it correctly without wasting a lot of time.
Is easy for getting models of popular characters, but, if you are not a beg, then is a waste of time since you can just draw the clothes in the perspective you want, and the hairstyles, since those are the basics of drawing and only begs need help with that.
DesignDoll is better for the average drawfag, because do what you need from the beginning, wich is posing a model easily, get the angle you want, and fast edit the body proportions and shape, since that is what average and advanced drawfags need, posing a model more fast with a correct light source than the time they take to make it by themselves.