To determine if your parental control app of choice blocks all forms of inappropriate content, that will ultimately depend on what you class as “inappropriate.” It’s worth remembering that the types of websites and apps you want to block or limit access to probably depend on the type of user you are targeting. What is appropriate for an 8-year-old, for instance, is unlikely to be the same as what is appropriate for a 14-year-old. You may want some parental control in both cases, but it may not be exactly the same. The main factor for many users of parental control apps is control. So, it should ultimately be up to you what you consider to be inappropriate. You might want to block all chat room sites for your children, for example, or you may be more selective so members of your household can communicate with friends. There’s also always the possibility that your children will find a way around any parental controls you put in place. You should ensure your software is always up-to-date and you should still maintain an interest in your kids’ browsing habits to ensure they haven’t created online accounts outside the visibility of your parental control software. That’s the only real way of keeping inappropriate content off their screens.