What's the best free or cheap (ie. $20 a year or less) parental control software for an Android tablet (Polaroid PTAB7XC) running ICS? It's for someone who really wants to limit their child. I was originally thinking just a simple whitelist, but having tried that in Windows in the past, it was a nightmare websites often use other websites to work (probably explaining this right). So the website category blocking that most seem to use is fine if it also allows blacklisting a particular URL and blocking certain search words. I looked up Net Nanny, but like most Android market reviews, they're all over the place.