Use Splitwise to split household bills with roommates, to figure out costs for a group vacation, or just to remember when a friend spots you for lunch. On the Android, iPhone or the web (http://splitwise.com), you can view your balances, track spending trends, set up email reminders for bills, and much much more!
"I only wish such a tool had been available when I was a new college graduate..." – Ann Carrns, NYTimes Bucks Blog
"Whoa, @split_wise is what we always wanted livewith.us to be. Totally going to use this in my new apt instead of my own software." – @aroldan