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
Money Manager Ex - Money Manager Ex is a free, open-source, cross-platform, easy-to-use personal finance software.
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!
GnuCash - A personal and small-business financial-accounting software, licensed under GNU/GPL and available for Linux, Windows, Mac OS X, BSD, and Solaris.