SpareRoom USA has a team of actual humans checking every single ad listed on the app, and someone reportedly finds a roommate on SpareRoom every three minutes. Combine that with the fact that users can search for roommates based on their personal roommate preferences, and it's no surprise that iTunes users give this award-winning app an impressive 4.6 stars (thought it's worth mentioning that Android users only give the app 3.9 stars).
As one reviewer put it: "I've found some really mature, focussed, success-driven, clean, polite, liberal male roommates with a calm energy from SR! I love that there is a profile that, if filled out, gives me a vibe for compatibility, which saves us both time."