It is a religious thing. I grew up fundamentalist Baptist and then softened up into the Evangelical world before leaving Christianity behind, and this was very common for both parents to use to get reports and see if their children were looking at porn and for men who had gotten caught or admitted to struggling with porn or cheating to have another man as an "accountability partner" and give access to his internet history through this program.

The software came up during the Josh Duggar trial because his wife had put it on his computer before either his cheating or his other inclinations became public knowledge.