Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Splittable - Shared living made simple
InVision Studio - The world’s most powerful screen design tool
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!
Design Principles - An open source repository of design principles and methods
Roomr - Discover great people to live with