Undress.app has a lot of free credits and no blur. That is online and does not require you gpu, easy to use from mobile too. After you run out of credits you can simply make another account or invite refs as I do. The result is usually pretty decent, but depends on how carefully you have painted the photo and the pose. It can do even back-poses and hard ones, but not every time that is good. I don't have paid plan, but it allows you to select traits as age, bodytype which is quite unique I think.
Here is the link:
Some results: