Compared to your kid, Houdini was an amateur. If you avoid crowds and frequent fenced-in playgrounds for fear of losing your little one to the Big Wide World, we’ve got good news. From GPS-enabled smartwatches to innovative child leashes (no judgment here!), there’s a whole range of great gadgets and apps designed to stop little escape artists from disappearing—and how to find them if they do. Flip through the slideshow below to see our top picks.

FBI Child

Nobody likes to think about it, but in those terrifying moments when you realize your child is lost, it's important to act fast. With the FBI's Child ID app, parents can store photos and vital information (height, weight) so they have something to give authorities should that dreaded moment happen. The app also allows parents to quickly and easily e-mail the information to authorities with a few clicks.

Available at iTunes, free.

Have you ever used a kid tracker? We want to know in a Comment below!

—Melissa Heckscher

All photos courtesy retailers