Tabbt - Tabbt takes the hassle out of handling money among friends.
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!
ihatemoney - Manage your shared expenses, easily
Kittysplit - The easiest way of sharing costs with a group of friends
HomeBank - Access Financial Services. Easy, fee-free banking for entrepreneurs Get the financial tools and insights to start, build, and grow your business.
Tricount - Manage and share expenses with friends