My only understanding of the roommate concept comes from movies and TV series. The way it's always portrayed is with people hanging up flyers with detachable numbers that others can call to enquire about a certain room available for rent. That's so last century. Nowadays we have the internet and there are useful/creepy places like Craigslist to find roommates, but with services like Airbnb making it easier to communicate with people before you let them into your home, a roommate equivalent service was bound to pop up. That's Roomi.
Roomi has been available on iOS since June, but it just made the relocation to both Android and the Web. The service lets verified users (Roomi scans their users and doesn't let brokers and landlords in) list available rooms and sublets with pictures and amenities, search for roommates based on interests and preferences, and it lets room seekers see what options are available for them. Users can connect Facebook and LinkedIn to populate their profiles and try to give a more legitimate vibe, communicate with potential roommates within the app, and even see who's checked their listings to reach out to them. The service also recently made it possible to add your current roommates to the listing so that everyone can get on the same page before a new person moves in.
Roomi is currently available in New York, San Francisco, Los Angeles, and San Diego. It's planning to expand to Austin, Chicago, and Boston this spring, but in the meantime those are the only cities you can use it in. The app is free and a few clicks away from residing on your phone.