It only takes a few clicks and just one download to put your children's security at risk.
"It's a dangerous playground," says Detective Glenn Latham with the Benton County Sheriff's Officer Cyber Crimes Unit.
But instead of swings and slides, there's singles and smokescreens.
"One of the largest dangers of it is you don't know who it is behind that app, You don't know if it's another 13 year old girl, or if it's a 45 year old man, or it could be a 47 year old woman. You have no idea."
The Benton County Cyber Crimes unit deals with sexual predators everyday.
That's why they're warning parents about the app Meet24.
"These apps, you can send photographs in them, you can send text messages, you can send each other gifts, and it's not something younger children should be using."
Because the activity doesn't leave a trace.
"Photographs are taken in the app and sent in the app. They're not stored in the camera roll, so the parents , lots of times, won't know what photographs are being taken, and almost everybody on there is asking for explicit photographs."
And parents are the first line of defense.
"One of the largest things they need to do is they need to check their phones. I would suggest that, especially on your smart phones where you're talking about your Android phones or your iPhones, they should know the password or the security lock."
A little extra oversight, to keep children out of harms way.
"Parents need to be aware of what's out there, what their children are using, and the potential for harm or danger to their children."