Yondr is a San Francisco-based startup that offers a solution to annoying mobile phone addicts at concerts, comedy shows, and even schools. You can even use their system for your wedding or bar/bat mitzvah to keep people from posting unflattering candid pictures online or browsing the internet when they should be paying attention.
They created this pouch that you lock your phone in for the duration of the event. You keep the pouch with you at all times. It can be unlocked with a special device, kind of like the ones shops use to remove anti-shoplifting tags, and used in a designated area, like the lobby.
While it has been around for a few years, I just recently heard about it because a musician on my Facebook newsfeed shared a post mentioning that Jack White is banning phones at his shows with the help of this system.
This got me thinking…