Kittysplit - The easiest way of sharing costs with a group of friends
ihatemoney - Manage your shared expenses, easily
SplittyPie - Create event, add users and their expenses.
Splid - Splid helps friends manage their money.
/Tab - The simple way to split a bill among friends.
WieBetaaltWat - With WieBetaaltWat you can manage a list with your shared expenses.