No matter what apps your child uses or downloads, Bark can block it — regardless of whether they have an iPhone or an Android. Net Nanny, on the other hand, limits app blocking on iOS to just 125 apps. They also limit alerts and reports about installed apps to Android devices only. Comparing Bark vs Net Nanny, Bark gives you far greater control over what apps your child can access. At the end of the day, you know best — not Net Nanny.