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

Airbnb - Book unique places to stay and things to do.

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!

Roam - Live anywhere you want, as long as you want.

Splittable - Shared living made simple

Outsite - Flexible co-living membership for $99/year