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!

iFly Res - Reservation and passenger management system for airlines

Dinngo - Splitting payments the fun and easy way

AvAIO - sysaio builds innovative online software all in one applications that drive logistics businesses, aviation, business management

/Tab - The simple way to split a bill among friends.

VRS - Airline reservation system for the aviation industry