Posted 06 February 2013 - 11:01 AM
I've used Net Nanny (that's what it's called) on the PC as a trial. The kids were pretty young and only using it when we were there so I didn't buy it. Although I probably should now they are getting older - even an innocent google search can return unexpected results.
Net Nanny blocks adult content, you can set PC usage times to limit the time spent playing games etc.
My favorite feature was the ability to monitor chat for key phrases. You can allow chat, and not have to monitor it yourself / intrude on their privacy.
The software tracks key phrases such as people trying to find out names etc, and will then either shut down the chat or email you a report including the conversation and you can take action remotely as necessary.
They don't support iOS yet as far as I know, although they are working on it.