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!
Solo - Personal kanban boards hosted on your own server
Splittable - Shared living made simple
Bonsai - One platform to streamline your entire business
EquiTable - Split the bill fairly
PayPal.Me - Request money using your own personalized URL.