The whole idea of iOmoney is to simplify and automate the sharing of expenses for a group of people. You can use it for any expense sharing such as sharing house bills, organising a party, sharing holiday or travel expenses, etc.
iOmoney does all the calculations for you and reduces the number of payments to the minimum possible. Just have a look at A Simple Example to understand how useful and powerful iOmoney really is.
It gives you a continuous balance for each person and tells you who owes money to whom to solve all the balances.
Use it as often as you like to find out whose turn it is to pay for the bill...