Splitwise - Splitwise is a free tool for friends and roommates to track bills and other shared expenses, so that everyone gets paid back. On the web, iPhone, and Android!
Rydoo - Rydoo is a Travel and Expense management system.
Kittysplit - The easiest way of sharing costs with a group of friends
TravelBank - A modern travel, expense, and rewards app for SMBs.
SplittyPie - Create event, add users and their expenses.
Emburse - Emburse is an expense management platform that gives businesses more insight into and control over corporate expenses.