AirMAX System - Down Draft Filtration filters at floor level and recovers waste stratified heat at the ceiling, reduces heat loss through the roof and filters and captures airborne particulates.

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

Kiu Res - Airline Reservations

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