All apps that allow users to access porn be it Reddit, Twitter, whatever will be required to implement age verification from July in the UK. Rather than the easiily bypassable message 'Are you over 18', there will be measures via banking, mobile contract info where sites will be legally be obliged to confirm whether the user wanting to access porn is old enough. Those that don't, will be blocked by ISP's. It is a good measure I think as there is no doubt children can access porn a lot easier than when I was a child. Long gone are the days of finding a grubby magazine under a hedge at the back of the school field lol. Now its an easy tap away on any smartphone or device. Parental restrictions don't protect against apps that aren't primarily designed for porn, but contain it.