I downloaded Snapchat when they first busted onto the scene to see what it was all about. I was constantly being told by a close friend to download it so that she could snap with me.
I thought it was a poor means of communicating and though the snaps were just noise that I didnt need.
I jumped onto Facebook's IPO but snapchat I definitely wouldn't touch.
That said, if you don't understand a company, man, you should stay far, far away from investing in it.
And I don't use DropBox. I use Google Drive. For free.
Where's that Dropbox IPO at anyways?