Parents need to be savvy when in comes to digital parenting they need to use the 3Ms: Model, Manage and Monitor your children's tech habits. Watch this video from Digital Respons-Ability about the 3-Ms of digital parenting.
Keeping up with technology and the constant change is a full time job times two! Here are websites that have great information and resources to keep you and yours more safe when online.
Remember that there is no app or program that will replace you, as the parent, in the lives your children. As with all things set clear rules and expectations and work on open communication. Good luck! You are doing a great job.