It is actually a very widely used application for people living with roommates or other non-institutionalized housing arrangements where groceries and other mon

It is actually a very widely used application for people living with roommates or other non-institutionalized housing arrangements where groceries and other monthly expenses are split on a regular basis -- college folk, young entrepreneurs, cash strapped people etc. I believe it is a pretty rife market -- rentshare.com, splitwise.com, billmonk, reconcileapp.com etc.