Snapchat is the first (and likely not the last) mobile app that I (as someone in my late 20's) just "don't get".
There have been plenty of apps that I've tried and aren't for me so I've uninstalled them, but I always seem to understand their purpose and what makes them unique and desirable to use for someone who isn't me. Snapchat on the other hand...is a mystery.
I'm in my mid-20's now, and I got it at first, though I didn't use it. Thr point a few years ago was it was a "secure" and "private" place to share with your friends, thanks to the ephemeral nature.
But over the last 18 months they've pushed towards a more broad social graph and more public nature and I just don't understand it. It's Instagram with some time-limit's.
There have been plenty of apps that I've tried and aren't for me so I've uninstalled them, but I always seem to understand their purpose and what makes them unique and desirable to use for someone who isn't me. Snapchat on the other hand...is a mystery.