How well do you know your kids? You may feel sure they're mature enough they won't be scarred for life by accidentally viewing websites that a typical parental control utility would block. But are they good enough at impulse control to avoid misusing their smartphones or social media? With a uKnowKids Premier subscription, you can keep tabs on your children's social communication. It's an impressively complete product, with unusually comprehensive coverage on iOS devices.

At $100 per year, uKnowKids costs more than most competing products, but it does let you keep track of four children. For each child, you can track activity on Facebook, Twitter, and Instagram, and also track one Android smartphone and one iOS device per child. If you're convinced you'll want this service for many years, you can pay $180 for a lifetime subscription. Either way, there's an additional one-time fee of $60 if you want to make use of the service's impressive iOS support. You can try the service for one week without cost, but you do have to enter your credit card information to start the trial.

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