Good article and a key reason I purchased Net Nanny. Only, after purchasing I found the 'link', on their Install Guide, to install Nanny on childs Android device showed Item Not Found when tapped.
Chatted to their support who said Android not currently supported! Maybe will be later this year.
As my child only has a phone I asked for a refund. No quibble, Says i will see refund in next couple of weeks.
So, if you have any Android devices needing protecting steer clear of Net Nanny ☹️ for now. If refund does happen good on them for that. If it doesn't, Toms Guide will be first to know lol