Are you saying it is "explicit" in that it is explicitly stating itself as such or that it contains explicit content? Because the former is honest and the latter seems to be untrue. Also you are replying to every comment here calling the author of the article a "disgusting pervert" and accusing them of a lot of things and I'm not sure it's adding anything to the conversation. It's a harmless journalling app
Sure it's harmless, but I think the app has enough suggestive content to be "explicit." There is a section where you can track your toy performance with options including ropes and vibrators.
You can imagine why Apple takes a dim view