Male to female ratio for any bar in real time. Gender Zoo also provides crowd age range and crowd types (attorneys, military, college, etc).
Major Cities : NYC, L.A., San Fran, DC, Chicago, Boston, San Diego, Houston, Denver, Atlanta, Seattle, Philadelphia, Austin, San Jose, and many more...
This app DOES NOT require any login or email registration.
http://www.youtube.com/watch?v=JP9r33CndZ8