Privacy

This is an art experiment, so there are risks. That said, I don't store any personally identifying data—just the time and geographic location of your last check-in, along with an encrypted idenifier so I can tell if you're a new or returning user (but not actually who you are).

I also don't do anything that affects your FourSquare account in any way. I don't even store the authorization token that would allow me to do so.