Evenfy - A free tool to manage household IOUs with roommates, split bills and track group expenses so that everyone gets paid back. On the web, iPhone, and Android.
Grisbi - Accounting for everyone !
Splid - Splid helps friends manage their money.
Ledger-cli.org - Ledger is a powerful, double-entry accounting system that is accessed from the UNIX command-line.
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!
Gnuaccounting - Gnuaccounting is a Free Java cross-platform accounting and bookkeeping application. Features