TabSplit VS WeSplit.it

Kittysplit - The easiest way of sharing costs with a group of 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!

Tricount - Manage and share expenses with friends

Memodude - Memodude keeps track of who you lent to, reduces your receivables and gets rid of bad payers.

WieBetaaltWat - With WieBetaaltWat you can manage a list with your shared expenses.

SplittyPie - Create event, add users and their expenses.