The app is free (and ad-free, which is nice). It's compatible with all phones running Android 2.2 and later, though for some reason I couldn't get it to work with my LG Optimus S. (It didn't show up in Google Play, even though it appears there in my browser.)

If you want to give your kids some play-time with your phone, Play Safe offers a free and easy way to protect your apps and data. Now you just have to figure out how to keep them from dropping it.Contributing Editor writes about business and consumer technology. Ask for help with your PC hassles at hasslefree@pcworld.com, or try the treasure trove of helpful folks in the . Sign up to have the e-mailed to you each week.