You'll need to wade through a sea of profiles, which makes it easy to pass over people you might have given a chance under different circumstances. I have friends who've met spouses through Ok Cupid. In fact, I've been on Ok Cupid, on and off, for roughly the last 11 years.
Profiles are much more in-depth than most dating sites, and if you answer a seemingly endless series of questions, they will spit out a reasonable Match/Enemy percentage ratio on profiles to help you gauge compatibility.
Frankly, if I saw a cute guy in a coffee shop, I'd just approach him rather than check to see if he's on Happn.
The app seems designed for people who don't want to use online dating but who also don't want to approach people in real life. The League is an "elite dating app" that requires you to apply -- and supply your job title, college and Linked In profile.
Hinge focuses on common connections that you and a potential partner share on Facebook.
Which is great if you trust the judgment of your friends and family.
(Hinge may have come to understand that, since you no longer need Facebook to sign up.) The app also asks questions to help you match with better connections, which can be a plus for serious relationship seekers.However the rate of overly confident males tends to be higher than I've seen on other apps.