There have been reports of harassment and bullying.
It has become a concern of the parents of many of the children and teenagers.
The fear is that they are opening themselves up to all situations of abuse. If users neglect to turn off the location sharing feature, viewers can locate the Periscope user.
The app appears to be a simple calculator, but by punching in a code will unlock a private photo album.
it has been criticized for not delivering what it promises for adults 18 and older.