Billsup is the best tool to keep track of bills and expenses with your friends! Whether you are travelling with your buddies on a vacation trip, or sharing a flat with roommates, or just lending money to your friends, Billsup can keep track of your debts, IOUs, and bills so that everyone knows who owes how much instantly.
Signing up takes seconds, and it's free at http://www.billsup.com
This tool aims to help those who are forgetful, or people that just want to simplify their lives without worrying about debt with friends. As well, it allows users to send reminders to their friends without the awkwardness of asking money back from your friends.
Last updated 19 Jul 2012