I don't care how great of a disciplinarian you are, when you want your kids to stop playing with their smartphones/tablets for some family time, it's a challenge! 

Thankfully, now there's a great app to help!  DinnerTime gives parents the ability to lock and unlock their children's smartphones from their own devices. Once they activate the "lock" function, several features on their child's phone will be temporarily disabled, including Internet, calling and texting. The app's creators hope that DinnerTime will help families better enjoy their meals together without any distractions (other than, perhaps, your teen's sulking face).  This is the best!  I'm trying this out TODAY.

[Source: The Next Web]

What are your favorite "helpful" apps?