This app was mentioned in 1 comment, with an average of 24.00 upvotes
Please don't use this bullshit site. It exists to charge people $30 after the 3 day trial and you will likely experience zero matches that are not bots or fake craigslist ads trying to get your phone number for who knows what (probably selling you to spammers).
They're spamming the fuck out of people on Craigslist/kijijij - if you post a room or ad on there you'll get hundreds of messages from various "interested people" who will tell you to check out their profile on Roomster to see if you're a good fit. You have to sign up for the 3 day trial ($5 or so iirc) to see the "persons" profile so people will sign up, see it's fake, forget about roomster and get charged with the full $50 or whatever on the 3rd day.
And do NOT install the app, there are tons of reports that it attempts (or succeeds in) doing some nefarious shit to your phone/data/traffic. No idea if this is true or not, I'm not putting it near my phone.
Look at the reviews; http://mythreecents.com/reviews/roomster
Or the apps human reviews; https://play.google.com/store/apps/details?id=com.roomster&hl=en
The founder/CEO is this gem of a person; https://www.google.com/search?rlz=1C1CHZL_enUS684US684&{google:acceptedSuggestion}oq=john+shriber+ripoff&sourceid=chrome&ie=UTF-8&q=john+shriber+ripoff
Companies like this (and the ATX foam glow run fake charity type of shit) disgust me.